Indeed. It is quite fascinating how that is simultaneously a wide-spread view of the left, while at the same time the left is regularly accused of being all collectivist. Some left wing ideologies are decidedly collectivist. Some are going equally far in the other direction...

No one but you and the poster above you is discussing "the left" as a single group.

"Communism" is being discussed, and implicitly Soviet communism, which ruled a gigantic portion of both Europe and northern Asia for several decades, producing a very definable system of rewards and disincentives, both legal and otherwise.