While I think half of the things Americans United challenges in the name of the First Ammendment are stupid, this hyperbole is not helpful.
In China Christians are imprisoned and tortured for professing their faith. I don't see that happening here anytime soon. Moslims can't even be imprisoned and tortured for planning to blow up buildings. (Not that I think they should be tortured.)
Shalom.
"Professing" - nice weasel word. This case isn't about merely professing faith or belief in a particular religion. It's about public expression of faith and belief in a particular, broad form of religion known as Christianity.
You can deny the truth all you want, but it's obvious even to a blind man that the public symbols representing that expression are being rapidly dismantled.