Well, if corporations are people with all the rights of citizens– then why can't churches be  overt, instead of covert, branches of political parties?   Heck, church members should be able to vote  right at church services rather than having to go to polling places! 
 Next we can make  saloons and bars tax exempt churches if the  stool sitters and bartenders preach at  each other bit over the counter.. and their congregations attend a lot more frequently then do churchgoers!