I have come to the conclusion that the concept of original sin must be one of those that are quite appealing to humans.
For literally millennia, original sin has been a foundational part of much of Christianity. We were all born with original sin, and so effectively started life with guilt. It turns out that it is much easier to exercise power over the guilty than over people who consider themselves innocent. The Catholic Church took advantage of this power by claiming that no individual could wipe away their original sin, their inherited guilt, without active engagement with the Church itself. I will leave aside theological arguments** here, but conclude that the Church used the original sin doctrine in part to enhance its temporal power.
As Christianity fades somewhat as an active part of Western culture, the idea of Christian original sin seldom comes up much in any practical way. But that does not mean the world has abandoned the concept of original sin - no indeed. Racism is one of the classic examples of original sin - in it, someone born black, or Jewish, or whatever, is tainted with an original sin that they cannot wash away, and makes them somehow inferior to others.
Much of what social justice warriors say sounds racist to me, as they often offer negative generalizations of whole groups based on race, or gender, or sexual preference. In my naive younger days I used to think that judging anyone based on their race rather than their individual actions and values was racism. However, SJW's have managed to change linguistics in their favor, conveniently redefining racism (or sexism) as only applying to those in historically more powerful groups (e.g. white males). By this definition, a black woman can never be a racist, no matter how much she negatively stereotypes other racial groups.
Well, OK then. I am tired of fighting this definitional issue. So I will just say that SJW's frequently fall in the trap of believing in original sin. Whites, males, heteros, successful people - they are all tainted in the SJW mind with original sin, so much that any utterance from any individual in these groups is deemed as having no value and therefore should be ignored or actively suppressed. This is actually a radical version of original sin that goes way farther than the Catholic Church ever took it, though I would argue it is promulgated for roughly the same reason - to enhance one's power.
** Speaking of original sin, in one of the great misconceptions that Christians have of their own religion, the immaculate conception was not Mary's virgin birth of Jesus but rather her own birth without the taint of original sin.