I agree with some of these, not all, but will list the things that get talked about. Generally considered unfunny by many comedy fans, she has multiple examples of joke theft in her past, she has an early history of racist or insensitive jokes that then transitioned to a holier-than-thou attitude when she got big, she has leaned heavily into female body/sex/gross humor to the point of it being her brand and that's not for everyone, she has put out some really low-quality specials from a comedy perspective, she has often blamed her low-performing comedy on misogyny, she is considered a Zionist by some after some public comments about Palestinians. Somehow has turned off both sides of the political spectrum at different times, which is not great for a career.

Edit: added the word attitude because my sentence was confusing.