That we Germans do not like American customs at all and that we find their manner very strange is nothing new. I have a lot to do with Americans on Twitch or Instagram because they have already become internet friends. Many said to me to understand this country and people you have to be born there. There are a lot of things that don't go as they should, but if you were born there, it's normal. Many Americans I know think the German system is very good and want it to be the same. Less weapons, military, etc. But more welfare state. But back to the question that many Germans have a rather strange effect on the USA is currently getting worse and worse, I personally think.
Why should the inhabitants of an entire double continent think badly of the inhabitants of one state? It's a bit presumptuous.
What "American" customs don't Germans like? Get clearer, get specific, otherwise it's a baseless statement, just an opinion.
This is reciprocal and the current US administration is not innocent of it.