The problem is not that Anakin isn’t realistically portrayed as a jerk, it’s that he acts like a jerk at all. He’s supposed to be one of the main characters, in the OT he was described as a great man and a good friend, we should be relating to him and care for him
I was about to make a post but I guess I don’t need to.
What I would add is that this kind of fundamental annoying crap is the real deal breaker when it comes to PT. Bad acting or dialogue are mere mild annoyances.