Regardless of what you or I believe, most workers and even many comrades are still religious and the last thing we want is to be push them away, as long as they accept a materialist framework for organizing society and we work together to progressively reduce religious harm over time they can pray all they want imo. The only reason why reactionary religion is so powerful is because capitalists have overfunded them for decades, and even then you have examples of anti-colonial resistance led by priests and imams. We can and should work together as much as we can, of course without compromising analysis or praxis.