I can think of no instances from history where a culture practiced self immolation like the US does. In Mexico, one often hears “Viva Mexico”. Most countries and cultures are proud of their heritages, but not progressives. For the life of me, I cannot understand where this self-hatred comes from.
In Obama’s case I don’t think it’s “self”-hatred since he is a foreigner.
In the other cases I think some sort of guilt has a lot to do with it - they feel guilty for being on the winning team.
And then there is a power grab - they want to realign who has the power over all that we achieved - and to get that they try to discredit all that we are.