Pretty much 100%.
Marxist utopianism and historical inevitability is remarkably similar in it's justification of atrocities to religious nuttery. For religious nutters it's because deaths on earth are less important than future existences in a mythical eternal heavenly utopia. For utopian nutters it's because the deaths now are less important than the perfect lives of countless generations that will be lived in the mythical future utopian society.
Pol Pot's project, for example, was specifically to wipe away corrupting cultural and humanist influences such as religion and start again with a clean, rational slate leading to a utopian society.