Time heals all pain man.
Your uncle didn't do well and it is not because he is rich, money brings out people's real behavior so that is just who he is, and if I were in your shoes, I would never tolerate any sort of Insult from such a person, In fact, I would never have anything to do with Him, I am very good at ghosting people, that is my strength and If people do not make me happy, I leave.
You deserve to be happy and the best way to achieve this is to ignore, abandon, and leave anyone who tries to take that away from you, life is short man, so make the best of it... It hurts to lose a loved one but the living must stay strong and continue living.. Your brother won't want you to also hurt yourself because you are depressed he is gone....
It's a different story with the Igbos, people in my side are more mean, and it's difficult to escape them, it's almost inevitable. It's a continous cycle and I've avoided them for a while now until my mom died and my brother followed, so it's difficult.
Thank you for the kind words.