*sigh*
I'm on your side; I'm with you, but. . . .
There is a conceptual separation of church and state inherent to the Anglo-American tradition of classical liberalism, its body of thought. The Founders understood themselves to be implementing that separation of classical tradition in the terminology of the First Amendment. You're getting hung up on semantics and the phony rendition of that separation imposed by the Warren Court, which is not the construct of the Founders at all, but that of the collectivist democratic theory of Continental Europe.
Indeed, the construct of the Founders does not separate religious expression from the state in the sense that lefty argues, and it chiefly obtains to the establishment of state religions. But in the classical political thought of the Anglo-American tradition it pertains to more than just that: it goes to the prohibition of the state suppressing ideological expressions and practices at any time, any place or in any way. It pertains to the inalienable right of ideological free association and expression for every individual.
Hence, the Warren Court's rendition is bogus.
There is a motif that runs through a segment of the Old Testament that offered variations on the basic theme: "In those days there was no king in Israel; every man did what was right in his own eyes." The people were frustrated that they did not have what they thought they wanted and they were frustrated that their neighbors did not behave to their liking, and they clamored for a king that would provide what they wanted and make everybody 'behave'. As the text continues, we find they got their king and a whole lot of unintended negative consequences.
The American Revolution was fought to rid the people of a 'king' (authoritarian government) and initiate the pure classical liberal concept of unalienable rights and a people who, with their rights secured, would govern themselves free of any form of king, monarchy, feudal lord, dicatator, totalitarian government etc. And for the hundred plus years this concept was protected and implemented, it produced the most free, most innovative, most prosperous, most compassionate, most progressive nation the world had ever known.
But alas, a segment of society who didn't study the origins of this nation and know little of those origins, now find they don't have all they want and their neighbors don't behave as they think they should, and they clamor for a 'king' to provide what they think they want. Unfortunately a lot of those people have made it into our governing bodies and court system.
If we don't start reeducating people on the concept of unalienable rights and self governance, I do believe we will lose those amazing freedoms.