/r/The_Donald is a place where a mix of trolls, fascists, and white nationalists get riled up, and work to start a horrifying new chapter in history.
Fascists and white nationalists defend it by claiming it's just clownish fun. (which, unamusingly, is EXACTLY the same explanation given by the supporters of fascism in Italy, and Russia, and Germany). Trolls really are having fun, they just don't give a fuck.
It's propaganda. It's gross. All of the donald's loser readers and writers have the right to share their bad ideas; but they have no particular right to say it on Reddit.