The point here is to evoke comparison with 1930s Germany, which expanded into neighboring territory and systematically imprisioned minorities. Hopefully China changes direction before it becomes 1940s Germany
The point of my previous comment is also to avoid such comparisons that are unhelpful, to say the least. Don't overuse those terms (holocaust, nazi, etc)
What about these ones?
Nazi Germany was not the greatest loss of life by a government.
But it is the government that's become nearly synonymous with human rights violations (in the West, at least).