Yeah, that's a little far. I just think his character design is stupid and that he's whiny and useless. But he's not like... a fucking scourge on mankind.
He's basically the Scrappy Doo of anime characters.
Thing is, Mineta doesn't even get in the way of any ships. All the chicks in class either ignore him or hate him with the exception of Tsuyu, who hangs out with him seemingly out of pity.
"Yuri paradise"? Are we watching the same show? They don't really ship tease much shoujo ai. I mean... Tsuyu is pretty touchy-feely with her friend Habuko, but that's about it. The don't really ship tease much in general, with the exception of Deku and Ochaco. I mean... if you're really reaching you can point out that they ship tease Kirishima and Bakugou in BNHA Smash, but Smash isn't canon, anyway.
Most people on Tumblr hate Mineta because of "My soggy knee!11!". They think he's making light of sexual harassment or some shit.