I do not pretend to understand all of your argument, so I will confine myself to a comment regarding non-belief in god. While it is true that Marxism, on the whole, was defined by many of its proponents as non-theist; The intent was to make the state the center of life and object of worship. Any worship of anything else was a threat. It seems that you imply that atheism leads to group think. Isn't that assertion more true of religion?
Just a thought. Have a great day.
No. It's counterintuitive, but actually religious people are less collectivist than atheists. Because religious people have their God, that gives them the morality, from inside, whether that is true or not, religious people are more introvert in that sense.
However atheists dont believe in a God, which means that they will create it for themselves, through Government. And Government will be an external God, that is much more brutal, and much more evil than any other deity would be.
etc, you get the idea...