This content is taken exactly from YarYulme's most appreciated "Lore-Friendly Better Bodies Underwear" mod. Thank you Yar-Yulme for returning this game to its original pee-pee-free state. I can't even...

https://www.nexusmods.com/morrowind/mods/43065

This is made specifically for installation by mod managers (tested on Vortex but I assume also works for MO2). The original doesn't work for mod managers because it installs the data files into Male and Female folders inside Data Files rather than installing over the top of the existing data files.

However this should also work fine for manual install if you choose (but better to download the original so the author gets the credit they deserve).

I've also removed the uninstall batch files because the mod manager will automatically take care of that now.