Regarding Chuck's denial of Jimmy, there are posts in the post that Chuck is a bastard and shouldn't be like this and Chuck said that Jimmy's nature is hard to change. That's what I've seen.
Both brothers are loyal to themselves and both have love, but the two brothers have the same personality, and there is no right or wrong.
Some people say that Jimmy is still a gangster in his bones, but I don't think so. The arrangement of the billboards in the play, the time to touch porcelain, etc. to prove that he is still a ruffian, I think it is a bit narrow-minded. Because neither of these things is malicious nor hurt anyone. Such a thing can only prove that he needs a lot of opportunities, to prove himself, to prove it to those who have expectations for him, to show his real name to those who look down on him, to prove it to himself, that's all.
Jimmy went from a gangster to an old lawyer later. He has rejected the temptation that a jerk will accept many times, and he is very firm. This decision is not so easy to make. If he is still that gangster, he will not give up a lot. Excellent opportunity. From sending back the 160W, persuading the couple to go back to Jin, to helping the elderly (Kin also specifically said that the elderly never forget him), refusing to cooperate with Joel even brought danger. So I think Jimmy has almost perfectly suppressed the villainous side of his nature.
He worked hard and wanted to be successful in this field on his own, but the truth that Chuck didn't trust him completely overwhelmed him. Chuck's distrust is the heaviest straw that breaks the camel's back, and the dying words of his former partner are the last.
Take a closer look, this show is not that simple.
Just my humble opinion, personal opinion.
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