Landry is absolutely right about that. There is a huge difference between establishing Christianity as a required religion or even pushing it as a required religion and:
1) Allowing Christian to freely express their faith and/or
2) Promoting concepts of Christian principles in our laws and culture:
--all are equal under the law
--do no harm
--right to life, liberty, pursuit of happiness
--right to the property one has lawfully and ethically earned or acquired
--sanctity of marriage and authority of parents for their children
--concept of God given/unalienable rights that government cannot take away
--etc.
"Since the first English settlements in North America, Christianity and its sacred text have had a significant influence on American jurisprudence. This reflects Christianity’s imprint on Western legal traditions in general and the English common law in particular. Early colonial laws, especially in New England’s Puritan commonwealths, drew extensively from biblical sources as interpreted within the colonists’ theological traditions. Christianity also contributed to an evolving constitutional tradition in the colonies and, later, newly independent states and nation, culminating in the U.S. Constitution. This is evident in broad principles, such as the separation of powers needed to check the abuse of government powers vested in human actors marred by original sin (Genesis 3), as well as in specific provisions such as setting standards of weights and measurements; requiring “the testimony of two witnesses” for convictions for treason; and prohibiting double jeopardy, cruel and unusual punishment, and corruption of blood. . ."
Since the first English settlements in North America, Christianity and its sacred text have had a significant influence on American jurisprudence. This reflects Christianity’s imprint on Western legal traditions in general and the English common law in particular.
cambridgeblog.org
So-called 'secular' American citizens who say they have no faith or religious beliefs are just as bound to those 'Christian' concepts as are the believers which is why our Constitution remains intact since its ratification in 1788. They form the basis for the huge lion's share of all our moral codes. The fact that this or that person or this or that group deviates from that norm is irrelevant.
I do not agree with the state mandating that the Ten Commandments be posted or Bibles be placed in classrooms but I sure have no problem with that recommendation and the teaching of how our JudeoChristian heritage is the primary driving force that created the USA as it was intended to be.