The Holocaust-slaves; Pol Pot-slaves; Stalin-slaves; Korean War-slaves (plenty of them) and so on. Whats the trouble? You claimed Dr Carson wasn't qualified to speak of historical events but in an attempt to discredit him you listed examples of governments that turned people into ...slaves. Not a single one of them started off with slaves or murder they first had to gain control of the people before they could. Like Obamadon'tcare does to our own people.
So once again, go ahead and tell the rest of us how slavery is worse than slavery.