Boyfriend states he?s not sure he?ll be ready to propose in 7+ years

UPDATE: thanks, everyone. I'm in tears right now. But I know what to do. Best of luck to everyone's lives and thanks for the good advice.
My boyfriend (28M) and I (24F) have been together for a year and a half.
Lately, I?ve been gently and respectfully questioning about marriage and the future. I feel safe enough to drop hints as he's talked about what will and will not be ok when we have kids, how many brides/groomsmen we'll have. Etc. We?ve already had discussions that marriage and buying a home are important aspects that we both want. I would NEVER bring it up this early unless he's talked about marriage/children with me which he has.
However, last time I asked he got nervous and says I?m pressuring him. He says he's not sure when he'll be ready and has mentioned he has commitment issues. Now I know 1.5 years may feel like rushing, I understand I can take life slowly and enjoy spending time with him. And I am! I promise, I cherish him and enjoy my time with him. I don't want to get engaged right now. But now he's saying he doesn't know and he's not ready yet. Last conversation I said I understand, but I wouldn't wait 7 years (I'd be 30) to get married and have kids. He said to that "well I can't be rushed. I thought my parents would never get divorced but they almost did." So I felt he was implying he wouldn't know if he was sure to propose to me after 7 years. That maybe he's not even sure if he wants to propose to me after 5 based on me saying "well I'd like to be married in 5 years."
Mind you, my timeline is before 30 because the women in my family (mom, grandma, great grandma) all had complications with childbirth after 30 that threatened their lives. Its the only reason I want to have a child before 30 - because my mom almost died having me.
I?m starting to feel extremely unloved and defeated. That he?ll never be ready and that maybe he doesn?t love me and is only with me because he doesn?t think he can get anyone else- get his type. Mind you, in the past he made comments about if I'd ever get a boob job, or comments about him missing me being super tan. I'm 5'6,more of a track body (not rock hard abs lean) and I'm not well endowed. I feel I am smart and attractive, I get hit on relatively frequently, so I keep asking myself why am I not enough?
It makes me think that if I was well endowed, tan, waist length black hair, more "Latina" presenting that he'd be more sure of getting engaged to me in day 4 years.
I repeat, I don't want to get married, pop out a kid right now. I just want to feel like I won't be the placeholder for the next 7 years. :/
should I wait this out see what changes in 2 years? Has anyone been in a similar situation and how did it end up?
TL;DR my boyfriend is not sure he'll be ready to marry me in 7+ years.


Source.