If we're genuinely asking, real actual communism comes into play. I think children being raised by government programs and not their parents would be extreme left. Making it so that no one can have more than $1 million to their name would be extreme left. Forcing people to be impregnated and give up those babies to government to be raised by them would also be extreme. Maybe left? Prohibiting religions. Making it illegal to be Christian/Muslim/Buddhist/anything. Making it illegal to have a gender. The problem of oversimplifying everything into a spectrum of left and right means that there's no room for ideas to exist not on that spectrum.