Which would fail on the factual observation that Christmas and Easter are merely names for essentially universal holidays - areligious atheists and other non-Christians having somewhat more claim on them, historically, especially such innovations as the giving of presents to children, but Christians (having recovered from their original antipathy toward them, banning and restricting of them on religious grounds, etc) being welcome to the party. Coercion is a matter of fact - the Court decisions are based on whether actual coercion (governmental "establishment") is taking place. That is not centrally a Constitutional issue, that judgment. Your confusion of "denomination" with "religion", "established" with "official", etc etc etc, did not afflict the highly literate and intellectually competent Founders.
Exactly how do the areligious have any claim? Christmas and Easter are religious holidays...Holiday meaning Holy Day, and the other none christians who practice similar holiday do so as religious events. The highly literate and intellectually compentent Political Founders meant exaclty what they placed in the Constitution and the First Amendment, and used plain simple english to state their intent; “ Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances. ” I fail to see any equvocation in those simple words, there is no "except for" in that clause...... and for the Judicial Branch to over ride that means they are making Law, something that is not granted to them under the Constitution another point that the highly literate and intellectually competent Founders place in the Constitution
Some current religions have adopted them from secular custom or adapted them from extinct religions, yes. But only after considerable resistance, often - early Christian immigrants to America banned the observance of Christmas altogether, let alone by giving presents to children, for example. The drunken bashes and fertility rites that are at the foundation of the current holiday schedules and customs had various roots, including simple desire to have a party, and the Christian takeover and attempted control of them is recent enough to have a written history of events within living memory. They aren't. The government officials who run the public schools are. And the Court is stopping them, as it should.
No, the Courts are making law, if it is un Constitutional the Court does not have the authority under the Constitution to provide a Relief, they need to return the ruling to the Congress, the Law making body of the Constitution, and have them implement said relief. And they are boxed by the first clause of the I Amendment; "Congress Shall Make No Law" The are no laws in force that place a wall of separation between Church and State, in the Constitution. Again a 159 years of Constitutional Stare Decisis were ignored in 1947 by the Supreme Court in that ruling.
