When they say “microdick in their brain” they’re saying that real feminists DON’T truly judge about the quirks of a person’s male body. What they DO care about is that mental attitude of toxic masculinity.
Feminists like this have a highly inclusive attitude. It is related to the paradox of tolerance - feminists should fight against toxic masculinity, not the idea of masculinity in general.
Misandry targets all men, not men with toxic attitudes. Your post was the latter, not trying to generalize to all men.
Lemmy is probably not a good place to generalize all feminists as misandrists - therapy is. Try to get some help before you let it consume you. Seriously dude, one of my friends went down this path and it really wrecked him.