Dennis Prager said this quote
“ It is America (or Israel) at war, not just any war, that disturbs the Left. That is why there have been few demonstrations, and none of any size, against the mass murder of Sudan’s blacks; the genocides in Rwanda, Cambodia, or Congo; China’s crushing of Tibet; or Saddam Hussein’s wars against Iran, Kuwait, and Iraq’s own Kurds. Though there are always admirable individual exceptions, the Left has not been nearly as vocal about these large scale atrocities as it is about America’s wars. One additional reason is that, in general, atrocities committed by non-whites rarely interest the Left—and therefore ‘world opinion,’ which is essentially the same thing as Leftist opinion. ”