If you do so, you were a shitty relative to begin with.
…and you usually find out they’re shitty because of how they handle (or don’t) “political” conversations.
Pro tip: You don’t get to decide for someone else what’s “just” politics. If someone else says it’s important, while you’re interacting with them, it’s important.
It's rarely, if ever, important to any concerned party's day to day life. It's bullshit partisanship instilled into idiotic brains by the media and social media.
Just because they say it's important, doesn't make it so.
…your family around the notional holiday dinner table? The personal is what’s important, kinda by definition. The point is the subjective and emotional.