As a black guy I don't remember a friend ever saying "black people suck" to my face. But I've heard people I'm close with, both women and men, say that "men suck" countless times. I think a lot of people who don't see themselves as "biased" still carry a lot of bias when it comes to gender, and it has an impact.
Entire entertainment genres are built around portraying men as inept fools who can be looked down upon by the opposite sex. Seinfeld is one of the few sitcoms where a female character is as flawed as the men. You couldn't even do that show today.