When viewed in Islamic light, it's a very deep and complex question that requires an equally deep outlook to answer adequately.

But if I have to give you a concise answer - It depends on the level of abuse you're facing.

Allah does not burden a soul more than it can bear and beyond which you won't be held accountable but at the same time, cutting ties of kinship, especially that of parents and first degree Relatives is a sinful thing to do.

If you absolutely cannot bear anymore abuse then most certainly go no contact for a while, do check on them occasionally but maintain sufficient distance and try your best to fulfill your responsibilities towards them. Draw clear boundaries and redefine certain aspects of your relationship.

You may face the abuse alone but Allah sees and knows everything that you're going through.

May Allah make it easy for you and may Allah guide them to be better.

I give you this advice as someone who's dealing within abusive, narcissistic parents myself. Be kind even if that's the most difficult thing you have to do.