My objection is not with the Abrahamic God in whom Christians, Jews and Muslims all profess belief, but religious tribalism.
And my point in noting that the Constitution (and all other documents before it) refers to Jesus, demonstrates that it has implicit religious tribalism as part of it's DNA.
That it is not, nor was it ever intended to be neutral on the subject of religion.
Throughout human history, more people have been killed in the name of religion than for any other reason.
This is only true of the Islamic Religion. Islam is credited with kill 100 million people since it was brought into this world. (Most of them in India.)
You are also mistaken in believing that religion is a requirement for murdering millions of people. The Communist (atheist) ideology has also killed 100 million people, and it has done so in a far shorter time period than has Islam. (Only since 1917)
Do not take my word for either of these two body counts. Look up this information yourself. If you cannot find it, I will provide sources.
The Islamofascists are big on that these days (and they kill far more Muslims than Christians), but Christianity's history is bloody and tribal and bigoted as well.
In the manner that a lightening bug resembles lightening. You can add up all the deaths caused by Christianity (obviously they weren't practicing it, but that's another topic.) and it won't equate to 1% of what the Communists (atheists) and the Islamists have done.
Religion is an institution of man, not God.
Well I think that is a point somewhat in dispute. :)
Spirituality and grace can, I believe, be attained without belonging to a religious tribe.
Well you can talk about abstract concepts such as "spirituality and grace" but as a practical real world issue, Muslims believe in a religion that compels them to murder people who don't share their religious beliefs.
You seem to hold pragmatism in high regard, and I am just pointing out the pragmatic facts about this.