There are so many different definitions and connotations with it both regarding the kink/lifestyle and the more traditional origin of the word. There’s something embarrassing about your wife cheating on you without your knowledge (and typically due to some shortcoming of the cuckolded party), and with that being the oldest and traditional definition, it makes sense that it wouldn’t have a positive connotation.

Then you have the cuckolds who actually like to be emasculated and demeaned, who often talk about not being allowed to fuck their own wives and how superior other guys are at it. Seems like these guys want to be embarrassed by it and freaking flood the internet with porn of them being belittled, licking up creampies, doing a whole bunch of shit that people are obviously going to react to, and that’s sorta why they’re doing it. As someone with no interest in that, seeing it all over online feels similar to furry culture, which is easy to understand why it gets jokes and dragged on.

Then you have the more swinger-y cucks who still have sex with their wives and stuff, but aren’t really the first thing people think of when they think “cuck,” since the other types are much louder and more notable. And still within this category, there’s definitely a suspicion among non-cuckolds that some of the guys do this because they can’t satisfy their wives, or because their wife wants to more than they do and they just go along with it. While that may not be true for most couples who actually engage in it, it does make it easy to see where some more traditional folks could find discomfort/humor in it.

A lot of the reality flies in the face of these stereotypes, like couples I know where the guy has been into it and the girl has not, but it’s still easy to wonder (with a bit of comic derision) why some guy is so desperate to have someone else fuck his gf, especially/even when it isn’t even for her. Absolutely not endorsing any of these beliefs, but mentioning them because it feels pretty obvious to me that/why a lot of men would consider many of the different types of cuckolding embarrassing or something to make jokes about.