I think there’s a good case to be made that “creep” or “creepy” is misandrist, at least when abused.

Calling a guy “creepy” or a “creep” at least borders on being a gender-based insult. It’s also almost always used against men, and when it’s used on women, it’s often as a joke. “Pervert” and “perverted” are similar in this regard, and the case is even stronger for them.

Also, oftentimes, the word is abused. It’s often used against men who have not actually done anything, and often is partly based on body-shaming. It is also very often used even when it’s out of proportion to something bad a man actually did.

Creepy and creep might also be ableist and anti-autistic, because it’s often abused against autistic people. Indeed, a lot of misandry is very ableist and anti-autistic. A lot of misandrist tropes, beliefs, and attitudes closely resemble anti-autistic tropes.

Calling someone creepy or a creep is a serious accusation. It’s basically saying that someone’s a sexual predator. It should be used only in those cases.

I think that the word “creepy” and “creep” may not be problematic and may be good, as long as it is used when appropriate, and used in an egalitarian way. It also might be good to just use alternative words.