My friends integrated my toxic, abusive ex into the friend group literally days after we broke up even though they barely knew her. I am not sure I want to be around this person ever again.

Sorry, reposted...edited the bad words out. Thank you for the previous replies :)
I (late 30s m) dated my ex Alice (early 30s f) for about 4 months. Buckle up...this is a bit long, but I condensed and organized it as best as I could.
We could talk for hours about all the toxic, abusive, and hurtful things Alice did to me, but for brevity, here are snippets:

• It started with the standard love bomb attack. "I love you. You're the best partner ever. I want to live together. Here's what I want to name my first child" in the first two weeks. After that, the abuse started to show itself and the devaluing slowly began...the typical narcissist cycle. They love bomb you so you'll worship them and hook you into staying when they devalue you. I have no self-esteem but lots of empathy to validate and supply her; I am the perfect target for these types.
• She constantly criticized the way I dressed and how I talked, threatening to break up with me if i didn't change.
• She talked about and pointed out, when at bars, dudes she dated and slept with on Tinder. She even described having sex with some of them.
• She talked about her ex, Jeremiah's, big 9" d repeatedly. This dude isn't even her last ex, he is from 6+ years ago who she was in a cult with. On one occasion, while she talked on the phone with him in front of me, she tried to take a picture of me to text to him...creepy. She made it known she was after the 8"+ d even telling me a story about how she'd be at bars and ask dudes if they had 8 inch d. Power to you honey...nothing worse than average d. She made it clear to me that mine was only 7", even a few times saying it was short. I am not sure why any sane person would say any of this or anything about their ex's d to their current partner other than to demean them. I didn't ask for any of this information, nor did I care to even know.
• She told me, while we showering together, that I needed to work out. The way she said it made it probably one of the most hurtful things. Again, telling me how she is not satisfied with how my body is. I think women having standards for their partners d and body is fine, but just go date somebody else that meet those and don't say hurtful things to your partner. She never touched any part of my body, other than the d, during the whole relationship.
• She called me names and insulted me when I wouldn't giver her line by line solutions to code that was for her work. These weren't fights. She is a bully when she doesn't get what she wants. This happened several times with each event more abusive.
• I left the bathroom light on when coming to bed and she had an epic meltdown...she threw covers in my face, hitting me with the back of her hand, and cussed me out for minutes calling me a f-ing f repeatedly.
• Yelling and abuse progressed. When I asked her stop mistreating me, she got in my face and threatened me with the "do you want to see me really yell?" routine. Any attempt to get her to be accountable for her behaviour ends up in her crying and being the victim. When I couldn't take anymore of this, I'd leave. Again, she blamed me for her rampages saying that she was walking on egg shells around me.

I sat there a took all of this and more. None of these were couple fights or disagreements. I never once raised my voice. I was caring, patient, and never fought back. I took it all. At the end of all this, she chastised me by saying I was acting like a beaten dog.
At the end, she comes to me pretty much demanding I move in with her or we are going to break up. Then a week after that, she comes over and asks me if I am going to have kids with her and then instantly breaks up with me after I say yes. She said if I was cool with her around my friends, we could get back together. She suggests a break, but she wants to be able to sleep with other guys.
Alice never apologized and blamed my depression.
I was devastated after this and could barely function. It took two weeks for me to even think about telling my friends. In those two weeks, my best friend Jason and his partner Courtney started to integrate Alice into the group far beyond the contact we all had while Alice and I were dating, which was minimal at best. She was nowhere near part of the group. They even helped her move into the neighborhood. Two weeks after that, Courtney, Jason, and Alice were on a couples date with my other friend Justin who Alice had never even spoken more than 10 words to (Jason's words). Of course, a few weeks after that Justin and Alice started hooking up/dating.
Nothing was mentioned to me about this. Nobody even asked me what happened. When I went to my friends Jason and Courtney to ask what was happening and to spill some of this, he didn't want to hear what she did. He went right to forcing me to have to order him and partner to ditch Alice.
I had been friends with Jason and Justin for almost 10 years. I considered Jason my little brother. Jason and Justin had barely spoken to Alice in the 4 months we dated, and Courtney had gone to karaoke a few times with Alice (mostly at the end of our relationship when Alice was most abusive and I stopped giving her attention). We did one couples date. All totally forgettable.
The Questions

My friends defend Alice's behaviour with that she is just awkward and make excuses for it.
Why I am supposed to order my best friend what to do here? I shouldn't have to force my friends to choose me. Who wants to be around people you had to force to choose you? Would you tell your friends to shun Alice?
Would you feel slighted if your friends integrated your toxic ex after you broke up? There's being the bigger person, but then there's being a doormat. Is there a point where a new person is toxic enough to warrant not being a part of the group for the sake of one person?
Looking at it another way, should I have just put up with my toxic ex being inserted into the group when she isn't a horrible person to other people? How much toxic and abusive nonsense does there need to be so that I'm not the bad person for walking from the group? Courtney has made sure Alice is at every event that I would be invited to, and Justin expressed he has no concern about how I feel in this situation. So, Alice was going to be at every single thing I would go to.
I honestly can't see this as anything other than I had little value to these people and I should move on.
I dunno. Your own stories and experiences would be nice to hear. Thanks.
TL;DR My friends integrated my toxic abusive ex into the friend group literally days after we broke up even though they barely knew her and didn't bother to ask me what happened. How would you handle this? What level of toxicity from an ex would you put up with?
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Edit: Thanks so much for everybody's responses, advice, and stories. Getting this out is what I really need so I can let it go. I will spend extra time helping and supporting others here and in the mental health subs. Thank you.


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