I think there's a lot of inaccuracies in this thread, but there's 2 main things wrong with it. Firstly, trap is not a transphobic slur, despite people going on about it day in and day out. This has been shown time and time again, in 2021 it's never used as such, and especially never used as such in the online manga/anime community.
Secondly, and most importantly, there's no reason whatsoever to delete content based on this faulty assumption, if somone doesn't want to read it because of it, don't read it. I'll never criticize somone for not reading something there not comfortable with. That's completly ok, but don't instead demand it be taken down. What happened to if you don't like it, ignore it?
Its not a good precident to set.