It looks to me like you’re equating the incredibly grim state of our political state with the parts of the culture we actually care about. The two are thankfully very different.
Looking for a solution? Several have already suggested some form of cultural separation. A divorce if you will. They’re right, and it’s actually already happening although most folks don’t identify it as such. But you’ll notice it if you’re looking to buy a house in Idaho or renting a uhaul headed for Texas.
In the end, there is free choice. People who want a culture of death badly enough will get their wish.
Build the church! The description largely fits the post Christian or non Christian west. But we aren’t all post Christian, not by a long shot.