What do you think about leaving my family to care for my mentally ill mother?
Why do you want to leave your mother's care to them? Did they do something to upset you? Are they abusive or something?
No, but I don't agree with their beliefs and thoughts on important issues and how I should behave.
It's not uncommon to not share the same views as the rest of your family but that doesn't mean you should just abandon caring for your mother. As a family it should be everyone's responsibility to help where they can.
I just feel like I need to escape the toxicity.
Wanting to get away from them forcing their ideals on you is completely understandably, but are you sure you want to leave your mother? Maybe you should consider just taking a vacation instead. That would probably make you feel refreshed.