I'll see your quote and raise you two more:
"So much of left-wing thought is a kind of playing with fire by people who don't even know that fire is hot."
"If you want a vision of the future, imagine a boot stamping on a human face - forever."
You realize that Orwell was a left wing socialist, right?
His first critique was of warmongering by people with no stake in the game. Who does that remind you of in recent US history?
His second quote was critiquing Stalinism and associated authoritarian ideologies, not liberalism or socialism, of which he was very much a fan.
It's very important to understand the context and the surrounding text for quotes you give.