Proof that my opponents are idiots and/or evil
It's easy to see that my political/personal opponents are stupid, or evil, or both.
Point 1) I am intelligent and well-intentioned.
Point 2) Being intelligent, I must be correct in my views.
Point 3) Being well-intentioned, my views must lead to good outcomes for everyone.
Point 4) If other people were intelligent and well-intentioned, they'd already agree with me.
Point 5) They don't agree with me.
Therefore: They're evil morons!