Crossovers that Should not be: Welcome to the next level.

[Necratoid]

I think the point of a guy self insert ending up a teenage girl is it Nerfs them... I mean self inserts that were suddenly a male of the same age as the
majority of the cast most of them would spend much of their time going after said females... by making them female it forces them to actually have to interact
with the cast as people... for the most part. Its like making an Epic level paladin take a level in druid and suddenly discovering that they just took an oath
that means the can't use metal... so that super, special, awesome platemail and holy sword are both useless scrap. Or making a Super Saiyan always have to
fight in deep space in very fragile(to them anyway) ships. Or Aura of Smooth +30 diplomat guy and sticking him on a world with nothing but giant man-eating
berserk giant bugs. I dropping the into the Alpha complex with a big mouth, a habitual ten letter word vocabulary... and no clones.

By making romance icky or largely uninteresting to them it forces them to actually do something productive. Granted to some this involves curling up into a
little ball and gibbering... but this tends to cut down on harems though future knowledge manipulations.