The only difference between Communism and Christianity is

Communism was defeated and retreated into the shadows of darkness,
but Christianity survived and is still
disturbing the world,
so it is safe to view it as a victorious form of communism.
Its intolerance, closed-mindedness, and strict discipline toward other ideologies
are most similar to childhood brainwashing.
In fact, rather than just Christianity,
it should be expanded to "Abrahamic religions,"
since Christianity only includes Roman Catholicism or Protestantism.