if unapologetic gets his wish and all religion dies out, that includes communism dying out.
Communism is not a religion.
It is authoritarianism. And sometimes cultish. But doesn't need to be cultish. We could kill off religion and communist countrys would not notice.
On the other hand, 'god' is the ultimate authoritarian.
I would agree that communism isn't a religion; But the reason communist countries wouldn't notice if communism disappeared is that there are no communist countries.
Stalinism and Leninism were religions; Maoism too. All of the supposedly "communist countries" were, by the admission of their leaders, not at any time communist, but were (allegedly) working towards communism as an ideal end state.
The belief that communism could be attained by a sustained program of authoritarian decrees was surely a religion.
The belief that communism can be attained at all might also be a religion.
But communism isn't a religion, any more than heaven is a religion. And for the exact same reasons.