In my original GP comment above, I was describing actual, recent rulings until the "nuh uh 1st amendment!" comment.

And I wish you were right. That was how I always read it too but we've found out repeatedly - and recently - that state & local governments (and state universities) can ban numerous things, contrary to the 1st Amendment.

I'm not sure what you're talking about, but the first amendment is exactly why state governments and local governments must allow, for example, the local satanic temple to open the council meeting with a prayer. And why publicly funded universities must allow street preachers and pro-life demonstrators.