Why a lot of women will say men need to stop being shallow and accept all women but call nerdy-looking men ugly and laugh at them?

Stop caring what those people say.

Exactly

I'm ugly but I'm not a nerd

Unless they are hypocrites, it’s not always the same women who do this. I’m not a fan of men or women who compile laundry lists of what a potential partner must look like. Usually it’s not realistic based on what they’re bringing to the table anyway, but as time passes it becomes of even less importance.