The "Don't tread on me" flag has been coopted by the libertarian party, so no, it shouldn't be flown on a government building. A gay pride flag is apolitical, and therefore acceptable. A back the blue flag is stupid, but outside of my personal distaste I don't see why it wouldn't be allowed to be flown. Hope that clears things up.

The language wasn't just lacking empathy, it was clearly trying to send the message that gay=bad. Additionally, they equated more LGBT staff in schools to more sex education, which they clearly dislike (more idiocy). Tangentially, though not directly, this ties into the conspiracy theory that LGBT people are more likely to be predators, which is only the case among clergy as far as I can tell.