I'm simply bothered by the fact that they are doing that to a church
Even if they are teaching incorrectly they have the right to do so
I'm not supporting the wrongful teachings or anything
Just that they have the right to say whatever they want
Ya know right to free speech
... free speech is not, actually, the right to say whatever you want. Being behind a pulpit doesn't actually protect you from what acts of speech violate the law. You cannot slander, certain forms of hate speech are, indeed, prosecutable, even if given during a sermon, etc., etc. If a preacher said to their congregation, "Get up, get your guns, and go kill muslims", they could readily get thrown in jail for it. Last I checked, anyway. A mitre isn't a blank check to break the law, et al.
As to the leeway, not really. Insofar as I'm aware, every single state in the union has an -- at the least -- majority of professed christian adherents. Church attendance actually gets pretty low in some places (but still, y'know, ~a fifth of the population at the lowest), but that's about the furthest it gets. As I noted, the chances of actual persecution,
especially systematic or wide spread persecution, of christian adherents are vanishingly small. I'd say it would take at
least another 60-80 years before that has much of a chance to change. At the absolute least, both my generation and the one succeeding it will have to die off, first.
As said, though, I wouldn't be terribly surprised if religious institutions stop getting away with so much bullshit over the next couple decades. Both their actual attempts to subvert law and political institutions, and the attempts of certain more politically inclined groups to
use them for such, appears to be grating on the public a bit more than it used to.