The church is just paying their salary, not dictating what they do with it. With that logic, when I pay my Sprint bill someone who works at Sprint gets a paycheck and if they have an abortion I'm paying for it.
I bet that somewhere down the line you bought something at a store, that money helped pay someone's salary who then bought something at a store and helped pay someone else's salary who then bought something to help pay for someone else's salary who spent his money somewhere that helped pay someone's salary at Sentrol which used used to be in Oregon and then I bought something from Sentrol which was then sold to help pay my salary. You just paid for my gas to drive to a Tea Party rally.