[Dimensio]

How can anyone say that Communism (and it is spelled with a capital 'C' - and this is not knitpicking, it is important) is not atheistic and materialistic!

I did not make any assertions regarding the properties of communism apart from the fact that it is not synonymous with atheism nor is it synonmous with materialism. Communism is an economic structure, atheism and materialism are not economic structures. Further, Human Vitae claimed that atheistic materialism is communism, which is not true.

Even if a communistic regime attempts to forcibly eradicate religion, that does not equate atheism and communism.

[gore3000]

Even if a communistic regime attempts to forcibly eradicate religion, that does not equate atheism and communism.

Semantics and sophistry of course. Communism is materialistic, it is often called philosophical materialism by its adherents. And destroying churches and persecuting believers of any and all religions certainly makes it atheistic.