But because those cases only have to do with religious groups meeting, not using government resources to proselytize, they really don't support your argument at all.
Here are some things for you to chew on.
http://www.au.org/site/PageServer?pagename=legal_litiga... (Scroll down to "Religious-Display Cases.")
Also
http://www.au.org/site/DocServer/NonLitigSum020601.pdf?... And please feel free to explore the entire Americans United site for more information on state-church separation. I am disappointed that you are basically parroting the positions of people like Pat Robertson and Jerry Falwell, who try and misuse the "free speech" right as a shoehorn to wedge religion into government.