>>47434765At its core, it's a fetish about gluttony, the sin that embodies excess, waste and lack of self control. So fat fetish art takes over and multiplies and fills every crack of every niche and never stops. Everybody who doesn't love it just hates it (which I'm aware can be said about basically any fetish, but I personally have never seen bimbofags or breast expansion fags arguing with each other or taking over to the degree we fatfags do). On top of this, it's also a relatively common and known fetish (so it's easier to "normalize" and it is gained mostly through cartoons (so it has high chances of awakening in kids anywhere).
If you ever visit /trash/ or /d/ (if you're a normie as you claim, don't, it's not worth it), you'll notice between 3 to 20 variations of fat threads up at any given time because the majority of fatfags can't stand each other and need their own (stuffing, weight gain, bbw, bbm, ceg, pony inflation, female fatfurs, male fatfurs, fat drawthread, all the fatmons in the fetishmon dex, and so on).