I have a mom and sister with pretty severe cases of it. I don't engage in talking politics with them. At all. Like has been said before, you're not arguing with a person, you're literally arguing with the TV. Subject is completely avoided whenever I'm around them. Just not even brought up.
It's pretty sad just sitting back from a distance and watching them attack, disown and completely torch relationships with friends, other family members, etc because TV said orange man bad though. TDS seems to compel people to proselytize and just harass others. It's not like other beliefs where you can keep it to yourself or just be neutral.