Decent people everywhere were treated to a nice surprise on Monday, when Arizona’s two Republican Senators both called on Arizona’s Republican Governor, Jan Brewer, to veto a bill that would systematize anti-gay discrimination — and untold other forms of discrimination — in businesses across the state.

That these tweets came as a nice surprise isn’t quite as revealing as the fact that Brewer obviously needs to be pressured by allies to do the right thing and veto the bill, rather than sign it or allow it to become law automatically.

Measures like these have emerged in a number of states out of a wellspring of conservative panic about the country’s abrupt legal and cultural evolution into a society that’s broadly tolerant of gay people. Rather than deny the shift, or stop at trying to reverse it in legislatures, the courts and at ballot boxes, conservatives are instead attempting to erect a legal architecture that will wall them off from the growing portion of American society that supports equal rights for gay people. The idea is to use their putative religious beliefs to exempt themselves from broadly-applicable laws when those laws reflect a zeitgeist that offends them — or, as former-Business Insider writer Josh Barro put it, to create “a special new right to discriminate on a particular basis.”

The good news is that these efforts aren’t exactly flourishing. John McCain hasn’t been anyone’s idea of an ally to LGBT people…and if he’s against a bill like this in Arizona, then it stands to reason that Republican statewide officials elsewhere won’t be supporting similar measures.