It wasn't misogynist, it was immature and obnoxious. The show never actually dealt with sexuality maturely. It was just a series of tedious scenes of good looking people of the same sex fondling. Scenes like James Marsters saying he'd like to fuck a dog, or him and Jack snogging aren't mature.
They're the TV equivalent of two drunk straight sluts kissing in public to get people's attention. It's just lazy and annoying. "Look at me, look at me!". No, you're not shocking. You're just shit.