Again with the mind-reading. Maybe people don't want to talk politics because so many people debate in bad faith and not only put words in peoples mouths, but thoughts into their heads.
Like covering all your food in a bottle of Sriracha, political Twitter can be fun at first, but eventually you're going to get sick with diarrhea and need a break. In my case, a permanent one.
I am happy to do real things for marginalized people, like vote, hire fairly, support progressive policies, etc. but exposing myself to that place does no one any good.
For what it's worth, though, my Twitter experience is pretty different. I follow a wide variety of people. Some of my feed is politics. A lot isn't. If you just have it show you a strict time-ranked feed and discourage it from suggesting stuff to you, you can tailor the experience quite a bit.
It seems like you're reading the original comment as saying "I feel justified in never thinking about marginalized people and systematically preventing myself from seeing anything that might prompt that thinking"... and I think that's a really big leap to make. There are ways to be informed without exposing yourself to the firehose of everyone's random opinions and feelings, which can be a complete lose-lose proposition, damaging your own mental health and relationships without helping anyone.