Not to mention, the whole reason "The Night of the Long Knives" even HAPPENED is because Hitler was bound and determined to PURGE the leftists from his party.
The only people pushing the Athenian Straw Man Nonexistent Threat of Slippery Slope Windyfoggery (ASMNSSW) RE DEMOCRACY are people who have a misunderstanding/problem or hatred of democracy. (See AUTHORITARIANS)