Russian Church does not condemn communism as a political doctrine
I find myself in two minds about this.
Yes, there is a sense in which Christians are neutral in relation to worldly political ideologies — at least in the sense that we should not be wedded to any of them. But it is difficult to see that all political ideologies are equal from a Christian point of view. Some political ideologies are manifestly unjust, and promote injustice.
When, in 1968, South African Christians condemned apartheid as not merely a heresy, but a pseudogospel, they were saying that belief in the ideology of apartheid was not merely incompatible with the Christian faith, but antithetical to it.
“Communism” is a somwwhat wider term, though in the form in which Russian Christians faced it under the Bolsheviks it was not simply an abstract economic ideal of sharing material goods, but in the form of Marxism-Leninism-Stalinism it included several other things as well, such as the enforcement of atheism, and the deliberate starvation of large numbers of people. While one can say, as a general principle, that no state system or political doctrine can be preferable to the church, there are also features of some state systems and political doctrines that can be decidedly unacceptable to the church. While the Church should not endorse political parties, or their policies and programmes, it can, and sometimes should, point out policies or aspects of policies that are unacceptable to Christians.