Cultural failure - I thought Alex Karp's recent book was pretty good and worth reading. It makes the case that our culture has failed to articulate the things that make the west great (and worth defending) and as a result it's creating a lot of political and cultural problems. https://www.amazon.com/Technological-Republic-Power-Belief-F...

Religion (particularly Judeo-Christian) has a lot of issues with empirical historical / scientific claims, but one thing it was good at is it's culturally adaptive. A lot of the cultural tooling and support it provided both with community and with some of the core cultural ideas around family and children - life purpose and direction are probably good things for most people. Secularism does this pretty poorly for the average person and what people substitute for what's missing is often much worse.