[Spoilers] Why is Jack so hated ?

Hello there!
So, I've watched Breaking Bad multiple times and I never understood why everyone hates Jack so much or why Walter put everything into killing him.
So I want to make a few points regarding that...
>>> Yes, we disliked him because he killed Hank and Gomez but considering their criminal world business, I am not sure how that was not to be expected. At the end of the day, there's nothing personal about it.
Why people don't dislike Gus in the same manner for killing Ziegler who at the time barely knew anything about the meth operation? Compared to Ziegler, Hank had seen all the faces of the involved people and he was also extremely uncooperative.
>>> Jack had every right to kill Walter right after considering he never bothered to inform Jack and his people that his brother in law is a DEA agent. Not only he did not do that, but he also gave him a barrel worth of seven million dollars and a car to get away. Gus might've not let Walter live after a similar situation unless Walter could trade something of extremely great interest back.
>>> Jesse deserved it. Yes, we all love Jesse, but he did the worst thing a criminal could ever do - he snitched. It's an unwritten rule that no one snitches not only because of honor, but because if one does, they should expect something worse than death coming. Even Hector didn't snitch. Yes, you might say he didn't because he expected that his nephews would take revenge for it, but even when they were out of the picture, snitching would've been a last resort. Hector didn't snitch not even after given that might've been the only possible revenge he had access to turn on Walter and Jesse.
>>> People say Jack was a bitch for not accepting his death like a man, as Hank did. But I don't see how that is an argument to dislike Jack? Walter begged for his life multiple times. Is there something likeable about giving up and allowing yourself to be killed?
So, what is it?
Why all the hate for Jack? He might've looked like a total jerk on the outside but he was quite reasonable to Walter compared to other villains he was worked with and most of his actions are excusable in the context of criminal business.