The criminal act is the tax code itself. There -- that is the vile suppressor of free speech in the pulpit.
Well, a church could just refuse the tax-exempt status. I will agree that the laws against politicking from the pulpit aren't enforced against liberals - but it isn't a crime to go to a service and note what is said there.
Ding Ding Ding
If there were no income tax code and there were no IRS, this would not even be a problem.
BTW there is a bill in Congress right now with 56 cosponsors that would indeed eliminate the entire income tax code AND eliminate/defund the IRS. It's HR 25 the "Fair Tax".
Google it.