My [30 M] wife [30F] hates my family to the core and she has started to hate me as well!

She's from South I am from North. It's been 3 years. She hates living in North. She hates the culture, she hates the people. I know my house is toxic, I know my parents are toxic, they don't behave the same with my wife and my sister, my sister gets more of everything. She hates the fact that my sister gets everything from us but she don't. She hates that I'm lazy in noticing everything, and acting on it. I am stuck, I can't change my parents I owe everything to them. She hates it that I buy stuff for my parents. I hate myself, I hate that I got married. I hate that I spoiled her life cause she is clearly not happy. Not happy with my parents not happy with me. She hates all members of our family, even the kids. I am considering offing myself cause she won't divorce me and Idk how to do that either cause she says her life is spoilt and divorce is not an option. If I off myself at least she won't have a divorce stamp on her and she can probably get remarried into a south indian family. She thinks that if she married south indian, she would have been very happy cause they would respect her and treat her the way she deserves. I need an out. Idk how to handle this.