This is puzzling to me though since you're a communist. Note that the guy here isn't exclusively blaming the west for communism's failure, he basically says that it might have lasted longer but probably would have failed anyway, and that pursuing communism is ultimately not workable.
I agree with his assertion that the same processes which occurred in Russia during the 1990s are also occurring in the West, albeit more slowly and more irreversibly, and that the reason the Western ruling elite (whom he identifies as "leftists" for some inexplicable reason) currently hates Russia so much is because it has rejected the Western elite's attempts to impose a neo-liberal social and economic order on Russia. As soon as he starts blethering about "leftists" and so on, of course, he loses me. It isn't the leftists who hate Russia, it's the
liberals, a rather different category of people.
I did find his anecdote about the Jewish communist settlements pretty interesting though. I have always wondered if communism might work if people were strictly religious and have always been puzzled by communist's tendency to be hostile towards religion even though communism is seemingly an extension of some common religious ideas into a material framework. I can't opine on whether it would start working on a large scale or not but the wholesale hostility towards religion appears (at least to me) as one of the ideology's biggest weaknesses.
You are correct to point out the deep connection between Marxism and religion. The idea that everyone is equal in a fundamental sense, despite their obvious differences in cognitive ability, physical ability and economic status, is a fundamentally
religious idea, based on the Christian concept of the equality of souls. The reasons for the hostility towards religion are very complex, and have a lot do with the historic role of the Orthodox Church in supporting the Tsarist autocracy in Russia for centuries and with the desire to suppress any ideological alternatives to Communism. The most fundamental reason, however, is that Marx was hostile to the
otherworldliness of religion, and saw it as a form of self-alienation. Religious belief alienates humanity from this world in favour of an imaginary afterlife, and alienates humanity from itself, from its own real position in this real world. Marx therefore believed that, under Communism, religion would simply wither away in the same way, and for the same reasons, that the state apparatus would wither away.
Basically, they reject the "opiate of the masses" and then make their own terrible opiate (state propaganda) all-pervading.
Marx rejected
any kind of "opiate of the masses", and he believed that once Communism had been achieved, then the need for such opiates would vanish. Of course, Soviet society never reached the position where any of that would have become possible.
"Politics is the art of looking for trouble, finding it everywhere, diagnosing it incorrectly and applying the wrong remedies." - Marx (Groucho)