Second, it will remove the power of the government to silence churches on politics (as if clergy have no freedom of speech).A church can discuss politics right now, they just have to pay taxes like everyone else. If they don't want the benefits of being a tax-free organization, they don't have to be one. The FairTax avoids this issue by making all churches pay taxes like everyone else regardless if they are involved in politics or not. Which do you think churches would prefer?
You say that it isn't unconstitutional to link a person or organizations NATURAL RIGHTS to obedience to some arbitrary law. BTW, the law was passed by DEMOCRATS in 1953 because they believed that politics from the pulpit had at least in part been the reason for the defeat of Stevenson. It was punishment, pure and simple.
The FairTax obviously since under that system there is no government review of the church and/or no control over it by tax law manipulation.
We'll take the free speech and tax on consumption, thanks. The 501c3 laws subject us to IRS scrutiny and control anyway. There's no escape from them whether we apply for tax-exempt status or not.