It's a fact that you can't escape. Try to be frank if you have anything. We're all family. Nothing will happen. We can't always let such problems exist, which is not good for anyone. You can find a suitable opportunity to ask mom what she thinks of dad now, and she is willing to say it. Then you can find a chance to sit down with dad and have a good talk, tell him what you think and feel, and ask him why he did it. It's much better after the meeting. I have a similar situation with you, because family relations have caused my dislike of personality, inferiority and cowardice, but it will be much better now. I am willing to try to talk to my family and think about what kind of results they have. As long as they can live well, many things are beyond our power. As the saying goes, it is most important to live happily and healthily. People around you will eventually leave us to have their own new life, so do what you want.