Once a Pope steps away from using the Bible to preach/teach to Catholics about the rules by which they should live their lives, then I definitely object to them “speaking” on the issues you mentioned.
The pope is and should be free to address his flock on abortion, same-sex unions, private property rights, ‘global warming’, or whatever.
However, when he begins lecturing governments about those issue, he has crossed a line and become a political partisan. And political partisans should not be tax exempt.
Like any other human being he is entitled to his political opinions.
What he is not entitled to do is to stamp an official Imprimateur on them and couch them as being Scripturally-based Church teaching.
>>>>However, when he begins lecturing governments about those issue, he has crossed a line and become a political partisan. And political partisans should not be tax exempt.
OK, so then the Church should have lost it’s tax exempt status when Gregory XVI condemned the slave trade back in 1839? http://www.papalencyclicals.net/Greg16/g16sup.htm (of course he was mostly reiterating the words of Paul III written 300 years earlier)
Since there was no income tax then, maybe that’s too early. perhaps the Church should have lost tax exempt status in 1937 when atheistic communism was condemned (http://www.papalencyclicals.net/Pius11/P11DIVIN.HTM) or perhaps when, in the same year, he ordered his encyclical Mit Brenneder Sorge (http://www.papalencyclicals.net/Pius11/P11BRENN.HTM) to be read at all masses. Talk about interference with government!!!!
Do you favor a French solution, like their 1905 law on the Separation of Church and State?