Chubby women have plump bodies, with an healthy amount of fat, and are normal girls (except in the fashion world but that's another point).
The Squirrel Girl you are talking about is not chubby but overweighted, or even obese. It's unhealthy and most people do not find it appealing.
I'm not judging your taste but please, understand "chubby" is not the same as "overweighted" and use each one properly. Allow me to illustrate: here are two pictures of the same porn actress, Carmella Bing, taken a few years apart.
This is chubby: a little belly, full hips, curvy and that's it.
This is overweighted: bulges everywhere, orange peel and fatty.
Once again, I'm not no kink-shaming, but please: call a spade a spade.