Correct. Leftism is founded on sin. They are envious and they covet their neighbor's belongings. They create political systems which give them the power to murder and steal from those whom they envy. Like their father, Satan, they suffer from pride, proclaim there is no God, and then proceed to put themselves in God's place, deciding for themselves what is right and wrong.
The Left is of the devil. This is why they attack God's order of distinction between men and women. This is why they attack the family unit. This is why they attack Christianity (but no other religion) and mock them openly. And this is why they murder those who speak the truth, because they're children of the lie.
Every time a murderous leftwing regime murders millions and millions of their own people, the Left always whines "it wasn't real leftism." The problem with Germany, Italy, China, Russia, Venezuela, Cuba, North Korea, and Bolivia isn't that socialism wasn't implemented properly. The problem with those countries is that it was implemented faithfully.