You give too much credit to the liberals.
Presnting and discussing Bible passages is fully within the rights of every Christian church, tax exemption or not.
Then you ignore fairness. What about the liberal churches that repeatedly tear apart conservatives, Bush, Perry, etc? Will they be subject to legal actions as well?
Exactly, not to mention has the lesbian mayor demanded the sermons from the 38 mosques in Houston? I think not. Keep your eye on the ball.