It's baffling why people think it's OK to retweet political stuff just because everyone else does it. If your profile says "data expert" or anything, why then do i get political propaganda when i follow you? At least have the decency to add "and political commentator" to your profile
Having said that, twitter is a profoundly destructive force that is overwhelmingly people just preaching and clucking at each other's cleverness. I absolutely revile it as a platform, but I get and appreciate that it provides value for others.