No organization should be tax-exempt (not religions, not charities, not foundations), and no donations to such organizations should be tax exempt. Tax exemption takes money from the one democratic charity (our government) that supports vastly more than any other, increases undemocratic amounts of influence among the wealthy, and leads to financial shenanigans such as those we see here withe the LDS hoard. I've been in position to witness all of this via my parent's wealth distribution (almost entirely to charities, starting with 50% to LDS church).