> Genocide starts with separating people into them and us
This is an unsubstantiated slippery slope. We can categorize people, even sort them by desirability for some purpose, without resorting to dehumanization much less genocide. (Citizenship and immigration necessitate an us-them delineation. So do team sports, families and like club memberships. Us and them are fine. Us versus them is dangerous.)
> Genocide starts with separating people into them and us
This is an unsubstantiated slippery slope. We can categorize people, even sort them by desirability for some purpose, without resorting to dehumanization much less genocide. (Citizenship and immigration necessitate an us-them delineation. So do team sports, families and like club memberships. Us and them are fine. Us versus them is dangerous.)
It's not enough by itself of course, but in the US it's very much a "us versus them" if you haven't noticed.