We know your feelings towards the establishment clause, but how about the freedom of religous expression clause? Isn't it the work of Satan that Churches apply for 501(c)3 tax exempt status? Where in the Constitution does the IRS get the power to say what a Church can say? Madison and Jefferson would be more irate over given the IRS authority over the status of a church than anthing else going on. You have make an extreme interpretation of the establishment clause but seem oblivious to the freedom of expression clause.
Reminding me that the First Article of magna carta guaranteed the "liberties of the Church. The churches have always enjoyed special standing under English law.