Comparing the politics of two different countries on the left-right axis is meaningless in this context. Yes, by-and-large, there is very little political will to expand the welfare state in the US compared to other western countries. So what? How is that related to the petty nationalism being discussed here?

You've also demonstrated that you don't understand how American political parties work ("Now there is also a party even further to the right") so you are not well-informed.

Finally, Germany has plenty of people who are just as idiotically conservative and reactionary as the equivalent contingent in the US. Might I remind you that the AfD is the third-largest party in the Bundestag?