Sure, if you ignore the voices of people who talk about their actions in working for liberation entirely. People like Bayard Rustin, Dr. King, Malcolm X, John Brown, Nat Turner, etc, etc, were very much informed by their faith. So were lots of people who were secular minded.
I don’t know if that’s something we can even approach as a question. Just take US history - was the religion of the enslavers more powerful than the religion of the enslaved? At the end of the day, the religion of the enslaved won out in the civil war (while the former enslavers won the peace), and that still is part of the struggle today. But if the enslavers won out in the peace, they are not the last word on that, or even the majority. And they’ve been boosted by quite a bit of secular help such as eugenics, a “scientific” field that shapes far too many peoples understanding of what “race” is and how it functions in the world.
Apples and oranges. Not the same thing - closer would be a debate over communism, and whether or not the crimes of Stalin and Mao completely negate the liberatory arguments Marx was attempting to make.
No, you just smugly put yourself into the superior position of people whose ideas you don’t like. The reality is that religion is a pretty complicated thing and not everyone who is of faith beliefs in what you dub as “superstition”.
If you’d said you don’t like people imposing their religious values on you through the political system, then I’m in full agreement with that. THAT is oppression. I feel the same about neo-liberal economic policies that privilege corporations over us as individuals. The modern capitalist system has been highly destructive to the point that we may actually destroy ourselves. And of course, there is a highly destructive strain of modern Christianity (prosperity gospel churches, etc) that are working to prop that up - but so are lots of people who are atheists or at least secular, and that is far more of a threat over all than some little old lady praying the rosary.
How do you gauge that, though? If you mean that a state religion has been the norm for all of civilization since recorded history began - well, sure… But even there, it’s a mixed bag on outcomes. The most long-lasting empires tended to be more tolerant of diversity, and absorbing of new ideas/religions (the ancient Persian empire and the Ottoman empire are examples of that).