I think the question is about which ideology predominates in a particular liberal Christian, the liberalism or the Christianity. Lots of these Christians are eclectic in their spiritual seeking or their picking and choosing what they want to believe. That's to say their liberalism is in charge of their religiosity, so they mean to customize their religion, according to individualist principles of autonomy, tolerance, and multiculturalism.
Established science is methodologically naturalistic and functionally atheistic. If you're talking about the early-modern period, which is when science was still establishing its institutions, the methods were still in flux. You still saw the dawning of functional atheism in the prevalence of scientific deism. God was gradually being pushed further out of nature and out of being.