By Historical example.
The truth many Catholics refuse to face is that their leadership has ignored church doctrine out of political fear of what government will do in backlash, rather than enforce biblical and church doctrine.
I don’t like it either but I refuse to deny the truth and continue to empower them to do more of it. They do not need the Pope to tell them what they very well know. But God takes a back seat again.
That doesn't explain their politics in America, it wasn't fear, it was a political goal, now the question is, life and traditional marriage, Christian conservatism, etc, or liberalism and unions, welfare, immigration, social justice, big city machine politics, etc.