I think it's telling that you could cut the nighttime street scenes from Idiocracy, and the audio of the language spoken in the future from the same, and splice that footage right into that of the rioters burning down their own communities right now and nobody who hadn't seen the movie would realize... We don't have a racism or other 'ism problem in our country as much as we have an intelligence problem. There are idiots on all sides of all problems and they aren't limited to any one group.
To define what Mastodon is, I will borrow from Wikipedia: "Mastodon is a free and open-source self-hosted social networking service. It allows anyone to host their own server node in the network, and its various separately operated user bases are federated across many different servers. These nodes are referred to as "instances" by Mastodon users." What you have found @ freedomtothink.social is one such instance of the greater Mastodon collective where the focus is on light moderation, no heavy-handed thought-policing, and the freedom to have a respectful conversation.