The problem with that is that it is a false equivalence, Dialectical and Historical Materialism is a part of the Socialist Scientific method, where as Liberalism is not Scientific or based on it, using those who are incorrectly treating Marxism Leninism as dogma to argue that it is a religion is the same as pointing to Scientologists pseudo-science cult as proving that Science is a religion. The biggest difference between a religion and a science, such as Marxism Leninism, is one is at odds with reality and the other explains it and has been proven through experimentation (putting Theory into Practice and refining the Theory based on the results in MLs case).