It depends on the church. When I was growing up, my household was not fundamentalist, but it was fundamentalist-adjacent (paternal grandparents and my uncle/aunt were fundies whereas my parents and the maternal side of my family were mainline protestants). I do remember the Baptist church my grandparents attended featuring a clear political message, but I don't remember any details and I was young enough at the time that I might be totally misremembering.
It sometimes feels as if politics has also become endemic in mainline denominations, but that's lefty woke politics, not Moral Majority politics.
Then again, I've never had a problem finding an apolitical church.