Remember the good ol' days when people just didn't discuss politics or religion out of decency? There was a reason for that, both bring out the worst in people.
The problem is that living life is inherently political. Being able to ignore politics, not having to feel the need to discuss them, is a sign that you are inherently better off than a good chunk of this country.
A lot of people spend most of their waking hours having to deal with or at least keep in mind the fall out from regressive politics. Asking people to not discuss politics is like asking someone living in fear for their safety to not try and improve said safety. You're asking to not have to be bothered by something that annoys you to talk about in exchange for someone not being able to advocate for their life and livelihood.
Suddenly I'm reminded of the decent (grown) people who yelled in six year-old Ruby Bridges' face when she was merely attending elementary school. So if that was 1960, I'm just wondering when those good ol' days you're referring to where.