For a while, before WW2, it looked like Germany was "doing fine" under Adolf Hitler too. Doing fine doesn't mean anything, you need to look deeper at the reasons people are hating Uber. There is growing evidence of systemic "social issues" that Uber is either amazingly still ignorant of, or more likely are being wilfully ignorant of in an attempt to maximise their profits. People are just reacting to this evidence based on their individual moral compasses.
It's not just that "Uber" is a German word, but that it's a word associated with Nazis (via "Deutschland über Alles"). Another association is the Ubermensch:
> The term Übermensch was used frequently by Hitler and the Nazi regime to describe their idea of a biologically superior Aryan or Germanic master race;