There’s just as much the CIA can patch, Wikipedia still provide a good account of famous historical events and plenty cross links, you can search for yourself and read the individual history of many who died on gulags or that got send there. Not even the CIA can spin history 360 degrees
https://en.wikipedia.org/wiki/MKUltra
If you have even better sources to wikipedia that’s good but your link redirect to reddit and vague articles and even to wikipedia itself
For starters you could read actual socialist theory but I know you won’t. If you’re truly acting in good faith, give youtuber Hakim a listen. Or The Deprogram podcast. Or Second Thought. They have various videos covering a multitude of starter* topics and they provide sources with their claims.
Edit: if you’re looking for insights on how the CIA does spin history 180 degrees (360 is a circle, btw, you’d end up at the same point) then give The Jakarta Method a read.
??? I am staying on topic. I’m giving you all these suggestions to check out. Or did you not expect an actual answer?