There is no female character in MHA that has the same prominence and importance as their main male counterparts.

True but so what? Not every story needs prominent female characters for the sake of it. There are tons of stories for girls where male characters are only in support roles and that's fine too. The female characters might get less focus but that does not make them sidelined or badly written. I have a feeling that if the genders were swapped, this would praised as a "feminist" story at the expense of male characters.

Within the villains, it is the only exception because Toga had prominence although to a lesser extent than Shiragaki, AFO, Twice and Dabi.

Still more than the male Compress, Kurogiri, and Skeptic. I think you expect female characters to be the most prominent at all times and I just don't think that's always necessary.

Just in case you say it: No, I'm not against having prominant female characters. I just think there is nothing wrong with a male-centric cast for a male demographic.

Momo gets his credit but let's not pretend that everything he did was enough to stop him, you are underestimating the real danger that Machia was, it was a joint effort

I didn't say Momo singlehandedly stopped him. You're right, it was a team effort so why is this an example of female characters being sidelined when no male could stop him either? You forget that Machia broke free from Jeanist's restraints and Endeavor's punch only worked because Momo's gas wore him out.