Not disagreeing, but... have you seen male video game characters? They're less often half-naked, but usually similarly sexualized.

In fact, video edits about male characters' appearance are vastly more popular than the ones about female characters' appearance.

The male characters are also incredibly more unrealistic. At least from my experience. I have yet to meet a guy who looks like Leon Kennedy, Geralt or Adam Jensen. While having met many women who looked exactly like or better than various female game characters.

Some years ago, it may have been the case that female characters were much more sexualized than male characters, due to lack of female gamers. Nowadays though, I feel like it's nearly equal both ways. The difference is in how the characters are portrayed and received by men and women. Both have, on average, different preferences.

The issue isn't really with men, female characters or video games. All industries of our entire society are filled to the brim with porn and erotic material. And that's largely because of capitalism. Porn and anything containing porn sells well. So in a society built around selling and profits, all of that sooner or later becomes the most popular, and the norm.