>>51087477plus, birth control and abortion are costly and not a permanent solution
cutting off your tubes takes care of the issue permanently if you don't want to reproduce
It's a bit hard for guys to understand, because to you, not having the snips means you keep your "manhood"
women don't think like that, women have 9 months of bodily consequences plus permanent complications (my mom lost teeth during pregnancy because she had a lack of calcium so the fetus absorbed them) plus potential other complications like having your anal canal prolapse during birthing. Not to mention it's a lot easier for a man to run away from the problem of pregnancy.
TL;DR: pregnancy is more biologically costly than ejaculating and evacuating, therefore women don't usually have this sense of pride of keeping their reproductive organs intact when they don't want kids, unlike most guys.