My dad said that asexuality isn’t real and that I’ll grow out of it

I started off by telling him I didn’t want kids, he starts going on saying that when I get into my 20s I’ll get the urge to have children? I said I won’t, and he said it’s in human nature to reproduce, I told him that I don’t like the idea of HOW humans reproduce, and he said that I need to give it time, how about accept my feelings maybe?