Communism genuinely doesn’t have a mechanism to account for or harness human greed except to say “it’s baaad”. Communism works small scale, but when it grows too big self interested actors take advantage of the system to funnel wealth and resources to themselves. In capitalism one of the primary ways to get ahead is to provide a useful and in demand service to society.
Even if I grant your version of history, what does that prove? If a system collapses every time a foreign spy agency sneezes in its direction, how can you argue it’s the inevitable future? History tells us that powerful nations will always interfere. If your system can’t survive that reality, it’s not built to last.