Original title (which I find a bit too click-baity):
Socialism: Let’s Not Resuscitate the Worst Mistake of the 20th Century
Original title (which I find a bit too click-baity):
Socialism: Let’s Not Resuscitate the Worst Mistake of the 20th Century
Your first two sentences come under the ‘messy compromise’ that I acknowledged from the start. The last is just obviously untrue.