Summary:
White people who behave unapologetically are intolerable, even if they've been bending over backwards to appease the professional victim classes for decades.
First, the anti white stuff in the US has been relatively minor and the anti white is much less than the anti gay, anti black, anti asian things in the recent past (1960).
Second, the Nazis really were bad people and not all that long ago. If I were a german, I'd be in self flagelation mode for my entire life for allowing this to happen.
Third, yes there is a very minor amount of anti white guy stuff going on in the US, but that brick on you shoulder is way out of proportion to the offenses you perceive.