Hello,
You can say the 1961 was when communism was at its peak. But SU was always far weaker than the West. China today alone is as strong as America, and the West is fighting expensive imperialist wars they can’t win (Afghanistan, Al-Ghazzah, Russia trade war). We don’t have a new Warsaw Pact or COMECON, but China is a huge country of 1.5 bln people, more than Warsaw Pact
Communism, no, sadly, not yet. The global south, yes. This is the weakest the “West” has been in four centuries, and if the current trajectory holds that decline will only accelerate. That in itself is a very good thing as it makes it much easier for communist movements and socialist societies to emerge and flourish. De-colonization is an absolute pre-requisite for any progress in a world where imperialism is the primary contradiction.