The term “perverts” implies this behavior is abnormal but it’s very common. But in the USA for example the dominant culture pretends like this doesn’t happen and encourages repression of these desires. I’d rather adults be free to express themselves in healthy ways than judge and label them as “perverts” despite their feelings being common and normal.
I don’t mind, but it’s definitely okay for people to be offended by the use of (what seems to be?) BDSM fetish community terminology. I don’t think this is a common term. If I referred to the cat face emoji as the pussy emoji or the cunt emoji in a Rust programming language article, I’d expect some pushback.
i think it also depend on the social group/context. in some place the word bottom kinda lost some of his "sexual" connotation and become just a "fun" world for submissive/unassertive.
(to be clear i also think is okay not to like this kind of language)
It's used by lesbians just as often and giving vs receiving has nothing to do with fetishes. You can have the most vanilla sex imaginable and still have a top/bottom.