If pushed by any level of government it’s a first amendment violation. In all cases, favouring one religion (or group) over others is discrimination. By making it an example of coercion, it poisons belief making it a must do rather than a wants to do. The only good that might come from it is having an example of how not to handle interactions between groups.
You're talking about a country that has "In God We Trust" on its currency and compels all of its students to reference God in its daily Indoctrination Oath. These have been upheld by the Supreme Court.
That aspect of the First Amendment is long gone.
The 50's were just a wonderful time, eh?
If you’re referring to the Pledge of Allegiance, the original versions were a lot more neutral, the God part was a reactionary addition during the Red Scare, it even made believers uncomfortable at the time, and Jehovah’s Witnesses still don’t want to say it.
The best way to fight this is to start saying we can only support true Christianity - Jehovah Witnesses or Mormons. The evangelicals that push for these kinds of things hate those 2 groups