In my experience, it tends to be used more often by left-wing critics accusing conservatives of engaging in a culture war. The conservative advances a position,

In my experience, it tends to be used more often by left-wing critics accusing conservatives of engaging in a culture war. The conservative advances a position, and the left-wing person responds that the position is chosen not on its merits but to further the aims of a culture war. It's a way of not having to respond to the substance of a position. Then again, I suppose I have an availability bias. I only see the term used by people I'm paying attention to.