score:5
Much, much less than that, if anything.
The $85billion figure has already been debunked in this question.
Religious institutions would not pay $85b even if they were taxed as profit-making businesses. $85B would be around 3/4 of the entire amount of money donated to all religious organizations in the US. No entity pays 75% of its income in taxes - nor would it exist if it was taxed at that rate.