Yes, comparing the entire history of American war crimes against one domestic incident in China will give you a much bigger American death toll number.
A fairer comparison would include Mao's killing of 45 million of his citizens.
Still not fair comparison, as these were also "their own". Not saying "us vs. them" is something to aspire to, but I think we can all agree that a military's responsibility to their own populace is a bit larger than their responsibility to an enemy populace.
A fairer comparison would include Mao's killing of 45 million of his citizens.