What does this have to do with women? Let me walk you through it.
Blanket refusals to a certain demographic of gay men — black, Asian, HIV-positive, kinky — indicate that you’re the sort of person who refuses to see people beyond their membership in said demographic. In doing so, you contribute to an environment in which people are reduced. In that line of thinking, all women are the same, all HIV-positive guys are the same, and all black men are the same. People who are “other” become one giant mass. They become less than people — they become labels behind which you stop seeing their humanity. This is a psychological trick called “dehumanization,” and it’s how Hitler made the Holocaust happen.
This is how misogyny thrives. When we tell ourselves that everyone who is female or everyone is fem behaves a certain way (and when we pass on this lie to others), we allow prejudices, stereotypes, and falsehoods about these demographics to spread and become reinforced.
If you think all fem guys are unattractive and refuse to see them as more than their femininity, you’re a gay misogynist.