Because your mother is a woman. And only through her body, you are now.
Yes, you should respect your fathers and men. They are human. You should respect every human no matter what.
Correct, you started when your fathers’ sperm fertilized your mothers’ egg. Both your mother and your mother played important role in forming you – as a zygote.
But, remember – you always can store sperms and freeze them. Oh, yes. You can also store and freeze women’s egg.
Now, tell me. Can you replace your mothers’ womb? Also, nothing can replace or take away her burdens during 9 months pregnancy and the chance for her to lose her own life when giving birth.
Now, you know.