the problem is the congress part. the states can do whatever they want. unfortunately, the states have bought into the bogus 'separation' argument and are running scared from the groups that keep taking them to court. the courts compound the problem by propping up separation. it's another one of those those things that the supreme court should not have heard, and should not have been applied to the states.
they not only celebrate Kwanzaa, some schools have gone so far as to have Muslim days where kids dress up and study Islam. grade and middle school kids.
i have not heard anyone say that they want Christianity taught in schools. just that we don't want it untaught. i don't know how you can teach history and leave the words of the founder out of it. how do you teach about some of the early settlers without teaching kids why they left their homes to come here.
not only is prayer in schools banned, some districts have banned moments of silence because it might be interpreted as prayer. they have banned the invocation and benediction at graduation, and even the mention of faith in the commencement speeches. they teach evolution as a fact even though they can not prove it, but mention creation as an alternative and you are finished.
It is the duty of all men in society, publicly, and at stated seasons, to worship the SUPREME BEING, the great Creator and Preserver of the universe. And no subject shall be hurt, molested, or restrained, in his person, liberty, or estate, for worshipping GOD in the manner most agreeable to the dictates of his own conscience; or for his religious profession or sentiments; provided he doth not disturb the public peace, or obstruct others in their religious worship.
John Adams, Thoughts on Government, 1776
i like harry potter.