Mostly I've been finding solutions through trial and error, and interestingly changing the gender in the save file data sticks and the character doesn't revert back. Also I just ended up removing the actions from that trait group, which was in the newsexsystem file so thank you!
Unrelated question, but is there an easy way to make certain sex actions add a specific item to inventory? I've been poking around a lot of files and trying to look things up, but I'm pretty much an amateur and can't seem to figure how to not break the game every time I try to add a new line. Most of what I've come up with is just editing/overwriting existing code to tweak or adjust things, but I don't know how or where I would place this.