Well, commies always figure you have to kill a few million people to achieve equality and utopia.
Conservatives aka classic liberals believe in the freedom and superiority of the individual.
While we may occasionally have an intense desire to pelt certain people with squishy tomatoes the idea of rounding them up and killing them just because they believe differently is contrary to our beliefs and values.
On the other hand this seems to be a common fantasy on the left. Even more worrisome is that they do not confine it to the realm of fantasy. How many people did Crusifix's buddies send to their death in the 20th century? Something like 150 million?
That is the population of a large country!