1. I am fond of saying that racism is tribalism gone feral. Racism is only like tribalism in one way: it's a way of dividing us. But the mechanism is at odds with tribalism, which allows for the incorporation of anyone who adopts the tribe's culture.

2. We only know of one mechanism. Racism was created by slavery and perpetuated by capitalism.

3. What revolution did Bell call for? He loved capitalism. The New York Times has endorsed the 1619 Project, but it has not endorsed Basic Income, let alone democratic socialism.