People dislike him because he hasn't played well. They may say it's about his "attitude" or whatever, but none of them would care about him getting upset with players if he were playing like Mahomes or Brady or Rodgers, or any number of QBs who often got on their own players during games.
This is definitely a huge part of it. But he’s also turned off a lot of people with his actions, lack of accountability and apparent sense of entitlement. We’ve had worse QBs who didn’t elicit this type of reaction.
Something just comes off as aloof. Like he feels like he should be above criticism and questioning from media, etc.