Did Feige get this amount of shit after incredible hulk/ iron man 2/ Thor 2 or AOU?
Im guessing not.
Considering none of those films were nearly as divisive and Feige was doing something as unprecedented as putting together the MCU and pulled it off before Thor 2 and AoU - I'd say it's hardly a comparable situation at all. People tend to be more forgiving to what's new and unfamiliar.
With Star Wars, there's a tried and true formula, or at least a notion thereof. People know what they want out of a Star Wars film, even a bad one. To them TLJ was like going to a restaurant and getting your order mixed up.
Sometimes that's a good thing, but to a lot of people TLJ just wasn't a good movie, never mind a good Star Wars movie.
I get what you're implying but you're off base. No one has gotten more shit out of making bad Star Wars than George Lucas himself. There are plenty of other names I can think of that get ridiculed and I think it doesn't have much to do with gender and everything to do obsessive pop culture fandom.
The only reason Kennedy does (and despite the fact she has a much longer much more successful track record than Feige to boot) is because she is a woman. Period.
This is lazy and just poisons the well. You're not arguing anything in good faith whatsoever. Kathleen Kennedy will never not be resented for being a successful woman so long as she lives, but that doesn't mean all criticism against her is rooted in sexism is ridiculous.
Granted, there's an unfortunate overlap with sexist and bigots and even the alt right, which makes it uncomfortable to side with any of these people, but fans can still have problems with Kennedy's stewardship of Star Wars and be none of those things. I don't know why you feel you should be allowed to group them together.