Mr Garfield's sex life does not involve subjugation of women generally.
This seems to be where things went wrong. If someone's beliefs did extend to the way they treat people in real life, like say they had a religious conviction that women were inferior and simply ignored them when they tried to contribute, it would be a problem. But in this case it's a private fantasy that doesn't seem to have affected the guy's professional interactions.
It's no different from lots of other panics over "potential" issues that don't actually arise. Guy/trans people in locker rooms or the military, that kind of thing.