I've seen a resurgence in race-based medical pseudoscience on Twitter. Things like "Native Americans have weak immune systems" and "Black people are ultra-vulnerable to coronavirus." This stuff should have died decades ago.
Certain genes are associated with susceptibility to disease, but "race" as such isn't, with a few exceptions (e.g., light-skinned people are more susceptible to sunburn and skin cancer).
Liberdon is a Mastodon instance for libertarians, ancaps, anarchists, voluntaryists, agorists, etc to sound off without fear of reprisal from jack or zuck. It was created in the wake of the Great Twitter Cullings of 2018, when a number of prominent libertarian accounts were suspended or banned.