Cancel Culture is basically fascism, tweeted. But the way Darwinism and Social Darwinism sponsored racism — because in that scheme of things, someone always needs to be the lesser human — should have been dealt with a long time ago. There are certainly plenty of other reasons for doubting Darwin and denouncing Sanger today.
One factor that helps diminish awareness of the fact of human exceptionality is the promotion of “buzz” concepts around animal intelligence that are not supported by the histories of disciplines and fall apart under scrutiny. But any time one fails (apes can be taught to talk!), another rises, seamlessly, in its place (elephants can be taught to communicate via high tech!). No one ever calls any of these people to account.