Even though the government does not tax a church, it still is able to make other demands, like fire safety regulations.
A church is expected to be a good neighbor.
For the government to tax a church means they also have the right to tell the church what to do.
The Bill of Rights prevents any whiff of interfering with the spiritual work of a church.
If they can interfere with a church's mission then they can also take away our guns.
In Australia they are working to force a priest to expose what is said to him in a confessional. That is wrong and stepping way in where the government does not belong.
> For the government to tax a church means they also have the right to tell the church what to do.
By that logic, then since they can tax citizens they have the right to tell citizens what to do. But the lawful Constitutional order is precisely the other way around.
Of course, if the types of taxes which would apply to organizations simply didn’t exist, there wouldn’t be a problem - churches could be tax free, as would every other organization, and the government wouldn’t be the decider as to whose religion was a real one and whose wasn’t.