“And, Liberalism is a mental disease with no cure.”
G.K. Chesterton called it a mental disease over a hundred years ago.
However, my opinion is that all leftist thought, from the limousine liberalism of a George Clooney to the murderous horrors of Mao, Stalin, and Pol Pot, is of and from Satan. Leftism is a contaminant in the human cognosphere, not a natural component of it.
Satan is smarter than we are, and he never sleeps. Those over whom he has the most influence are like maniacally evil energizer demons.
Every once in a while one of them escapes, as David Horowitz did, but who knows how or why?
Anyway, Satan knows that leftism is bad for humanity. Thats why he invented it, and thats why he flim-flams those he can into trying to force it on us all.
Be sure to factor these verses (esp #11) into your appraisal of Satan.
We do have the advantage, in God.
II Corinthians 2:
10If you forgive anyone, I also forgive him. And if I have forgiven anything, I have forgiven it in the presence of Christ for your sake,
11in order that Satan should not outwit us. For we are not unaware of his schemes.
12Now when I went to Troas to preach the gospel of Christ and a door stood open for me in the Lord,