Any system built by man has logical inconsistencies that spawn hypocrisies, and on the other end, abuses by those attempting to carry out every last jot and tittle of the letter of the law.
Given all that, Judeo-Christian praxis, even with its excesses and deficiencies, has built the most powerful and most advanced civilization humankind has ever seen. Our broad-based system of rights for all is not perfect, but where else is it better?
Despite Christianity's persecutors and inquisitors, the fundamental tenets of the Bible are essential for a salubrious and prosperous society.
That is why government appears to endorse or favor Christianity. Anti-Christians continue to scream about this, and my answer has always been the same: if you can build a secular system of morality with similar foundational bedrock principles, I am all for it as a national ethos.
But didn't the founders give us that already?
How often do public officials invoke our Lord and Savior Jesus Christ? Never. Like the founders, they wisely use broad euphemisms like the creator, or divine providence. That is the respect religious people pay to those who are not into that.
Outside of the early colonies, nobody has been forced to go to church here. We had a good set up. Religious people could live their lives, and the irreligious could as well. People were always free in this nation to practice their perversions, and the tribute vice paid to virtue was hypocrisy. People practicing perversions didn't do it in the public square; they respected community standards for the most part. They went off to their dens of iniquity, which town fathers and churchmen knew existed, and no doubt a number of them visited, but this unspoken social compact made for a healthy society.
What we have now is creeping neo-paganism, and it will not end well.