I think the vast majority of Californians couldn't care less about Gavin, it's just that we didn't want the crazy right-wing talk-radio host to take over.
Literally the worst thing I've ever heard about Newsom is that he used to date Kimberly Gilfoyle, an actual complete and total nutjob. Newsom's competition in the election were the kind of people who think Gilfoyle is a totally normal and sane human being and enjoyed her speech at the GOP convention last year.