BWL: Are you sure you're not confusing "twat" and "twit"?

Lighter: The German word for girl you're referring to is Maedchen (can't do an Umlaut here) which is indeed neuter gender. However, it is the diminutive of the word Magd (maid) which is female. By a twist of German grammar, all diminutives are neuter, which means your point is not evidence of German being misogynistic.