They can say whatever they want. There is no reason for my tax dollars to go to support political speech (such as encouraging, aiding and abetting Illegal Invasions). You want the exemption, follow the rules. If you want to say whatever you want in violation of those rules, give up the exemption.
The biggest issue is that this isn't being evenly applied. ALL tax-exempt churches should be barred from entering the political fray.
I say let free speach prevail...whether it be leftist churches or conservative churches who cares what they say...they're Americans and have a right to say it....and since when is it your tax dollars supporting them. The government isn't taking the money in the first place and they're not giving it to them from the federal budget...I say keep the government out of the churches and end this censorship now!!!!