Every list of 'Steps to genocide' the 'tards post applies to how they treat Republicans and Conservatives.
Then of course there is this minor difference:
Jews weren't surfing boxcars to get into Germany by the ten thousands;
Baltic farmers weren't caravanning to get into Stalin's Ukraine Death Zone;
The Thai and Cambodian middle classes weren't storming the Cambodian border to get them some of that good deal;
and nobody anywhere outside China wanted to move there for all the opportunities afforded by the Cultural Revolution.