America is perhaps 20-40 years behind Western Europe in de-Christianization. Evangelicals have failed to stem the tide for a number of reasons, which you have pointed out. The conservative political establishment has failed as well. We will suffer the same fate as Western Europe: socialism, some suppression of conservative Christianity (Catholicism included), and increasing moral degeneracy. The fact that the American people, for all practical purposes, have nothing but dreadful choices for President is telling. So is the Obama phenomenon, where he is sweeping the primaries while offering only rhetoric about "change".
I wish I could be more optimistic. No one wants to be a Jeremiah, but I see no reason to delude ourselves.
I’ve seen the surveys where something like 80% of Christian children who attend the commie gov’t schools graduate with the socialist (ie. secular humanist) worldview and basically repudiate any sort of orthodox Christian faith.
The country is going in the wrong direction because there is no discussion of foundational beliefs (let alone consensus!) or how they should be applied to the family, the individual, civil government and the church. The American view of government is regularly cast aside and those of us who stand by them are ridiculed.
We get the government that we deserve...and that probably means Hillary or Barak Hussein...