You do you, I guess. Personally, I would rather exchange a bland, insincere pleasantry with my butch gay aunt and simply not talk to her for the rest of the night than get into a yelling match with her about trans rights over the turkey and piss everyone off, not because I'm wrong, but because I made the awkward holiday celebration even worse for everyone.
And if that bitch dares to try and put me on the spot, I just say, "Oh, I don't know, I don't follow politics that much, but did anybody see that [new thing] lately, is [new thing] any good/worth the money, etc.?" and refuse to engage when I'm being baited. If they won't discuss it calmly with me over a beer in private, I'm CERTAINLY not to discuss it with them in front of the entire family. There's nothing in it for me.
Remember, folks, if you argue with a retard and win, you're a bully, and if you argue with a retard and lose, you're the retard. So there's no point in arguing with retards.