Want to know how it happens? It starts like this:
“I have always been opposed to the death penalty in all cases…”
“Even mass murderers [like Breivik] should not be executed, in my opinion.”
“GW deniers fall into a completely different category from Behring Breivik. They are already causing the deaths of hundreds of millions of future people. We could be speaking of billions, but I am making a conservative estimate.”
Once one is declared an enemy of the people, all becomes possible.