Kneeling in Prayer at the Supreme Court
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Including Christian practices in government functions is often justified by arguing that such practices are not really Christian but are instead just ceremonial deism. Examples of such practices include Congressional chaplains and the national motto "In God We Trust". Apparently, anything qualifies as ceremonial deism if it can be described as being so traditional and general that it couldn't possibly offend anyone, but is that really valid?
Read Article: Ceremonial Deism as a Mask for Christian Privilege in America

“The unstated premise is that only controversial religious practices in government should be found unconstitutional; uncontroversial religious practices in government should be left alone.”
This is contrary to the very spirit of the First Amendment.
If religious privelege does not soon come to an end, then religion itself probably will, along with humankind. Not to worry. Other life-forms are (hopefully) more qualified to survive.
Grandpa
If I may: “We must get rid of that Christ, we must get rid of that Christ!”–Ralph Waldo Emerson