I hear stories. I hear there are more than a few mega pastors with mega churches and mega followings who wear nice suits, drive fancy cars, like to jet off and soak up the rays at the expense of donators and congregations. Last I read, not all churches were 501(c). But, even if they were, there are a lot of ways that businessmen (that being their primary job role) can avoid taxes by owning non-profit religious organizations. In most Western countries, charities and non-profits run under special tax rules that mean they don't pay tax on donations or properties. But, in most Western countries, charities of all kinds are also used by for-profit-businesses as a tax dodging tool.
If a man owns a business and donates money from his business to his non-profit, then pays himself the donation in wages from his non-profit, he can thereby circumvent tax laws. I'm against that for all charities and non profits, not just churches.
Look, I'm not against churches no paying taxes if they're being genuine and honest about it, just like I'm not against any non-profit charity who does likewise. But it's when the law allows for blatant misappropriation of money, and dishonest use of these legal exceptions, that I get annoyed about it. Its clear to anybody who looks at the books what's happening, but the law allows for it anyway. It's like legislation is deliberately engineered to let people do the opposite of what they're saying they're doing. "Oh, my friend owns a charitable organization, we want to help the poor. Yes sirree, I did donate a million bucks from my business to my friend's charity, and yes sirree I am on my friends' books as an employee, and oh look, he did just pay me $999,999 in wages for the quarter, but surely there's nothing wrong with that, it's legal!"