mass genocide based on hair color and relgion
mass prison camps based on conspricy to commit treason.?
Stalin killed like 22 million of his own people for those same reasons and more, Germany also killed but only after the Allies charged and increased their fees on taking the people as refuges and forced immigration. Part of History that has been whitewashed in books was until very late 1941 Germany was also expelling people they didn’t want. Of course this was not the only method and as time wore on the conquests led to many new refugees. Stalin just killed people for even less reasons. Mao also killed way more than Hitler but the Chinese people themselves whitewash this to not look like hypocrites.
Stalin had gulags that performed the same barbaric acts as anything under the nazis.