They kind of are.
But nevertheless it's really amusing to see the long time Twitch thots lose their shit over cartoon avatars.
Here's the thing about Vtubers though. The audience base is kind of different in terms of what they expect from their favourite talents, despite their similarities. You actually have to be good and talented on acting, singing, gaming, etc to succeed in the field. Most importantly, you have to have a likeable personality. That's what many of those Thots and Wokies found out the hard way when they thought they could ham their ways into the medium like they did in the other mediums. Who knew people dislike watching or listening to untalented, unlikeable wretches who have no substance whatsoever aside from being obnoxious?
I'm not saying there aren't any Thots in the medium. There are, but they have to have good personalities in order to get by.