As a society, as individual people, we don't need more analysis; we don't need another systematic political framework.
Our deficit is not in understanding, but in motivation. We need repentance, renewal and a fresh start. This can only come from without, not within (because what is within is the problem).
Become Christian, say that you are Christian - say it to yourself, then to others.
Leave aside further questions (like which church, or whether any church at all) until after you are self-acknowledged a Christian. Things will be different, things will happen, after you are a Christian - but only after.
Say it: do it. It is absolutely necessary.