What I'm reading from this is that you have a muffin fetish, because, er, otherwise, I'm not sure how you're getting there. If you mean that there exists somewhere a brand of muffins with a rude name, sure, probably. But _most_ muffins, no sex.
Oscar Wilde nailed this one: Everything is about sex except sex, which is about power.
While people see more sexualised imagery then probably ever before younger people have less and less of sex with their peers. Sex sells, still. For how long, I wonder.
Market forces ruin fucking everything in their attempt to paperclip-maximize, if you don’t keep them on a leash. That includes sexiness. What’s described is an outcome of a system where “it makes number go up” is sufficient justification for almost anything.
They presumably recently came across some muffin shop that has like, a double entendre as a name, or something like that, and took it as emblematic of a larger pattern, which they dislike. (Obviously they weren't saying this is a pattern specific to muffins.)
I don't know what would be creepy about this? I also prefer to not think about sex or sexuality. If I could make it so for the next few months, I couldn't perceive information about sex or sexuality (except if there is something where I ought to do something with that information) and could not experience sexual arousal for those months, I would.
It sounds like you are somehow connecting their preference to like, whether people are socially pressured to keep things about their sexual interests a secret? I don't see the connection.