If 20-something women wanted kids at that age they could marry 30-something men who want to settle down if they were suitable marriage/mother material in the eyes of those men.

Oh good god! Get over yourself! Those 2-3 female partners were willing participants, not being led on. If you believe they were being led on, then you are not saying very much about women and their level of intelligence!

I don't feel as though I wasted any of the "fertile years" of my female partners who ended up not wanting to marry me!

I had a couple of different long-term relationships in my 20s before I found a woman to marry and start a family with, which we did just fine in our 30s despite having two miscarriages in between kid #1 and kid #2.