The US is very mixed race. Try it with Chinese, Japanese, or Somali and people will line up to call you racist there too.

I think Israel's leadership is actively exploiting that while the other 3 aren't.

Government exists through consent of the governed. Maybe not all the governed but enough are playing along that they get to continue. In that way the government is always a reflection of the people as a whole. I don't consent or approve of my government but I know that many fellow citizens do or we'd break out the guillotines.