This is an opportunity for your parents here. You’re the adult building your life just as they did when they were younger. They’re coming into your space. It’s up to them to be the supportive parents and put forth the effort to get to know your partner, even if hey have to use google translate to communicate at first. It’s crazy to me they aren’t ecstatic that you’ve found a person you want to be with. I know the guilt can get in the way, but try setting some boundaries and remind them that it’s your space they’re coming into and they’ll need to assimilate a little bit.
I wouldn’t go back even if my family was nice to me. You can’t make moves like that for other people. If you’re happy where you are, stay where you are and set some boundaries. Narcissistic parents will continue to do this until you set those boundaries. Took years of constant head butting with my family, but don’t give up even an inch. I had to threaten to kick them out of my life before they finally got it. They’d rather have you in their lives even just by phone than not at all.
I’m not saying that’s the right approach for your family, but my family is extra hard headed so it became necessary for my situation.