[HiTech RedNeck]

For “believers in the system” they sure seem to have gone infidel pretty quick.

[FreeReign]

For “believers in the system” they sure seem to have gone infidel pretty quick.

Obama, the mayor, the sate attorney, yes they sure have.

[KitJ]

For “believers in the system” they sure seem to have gone infidel pretty quick.

I think the word you're looking for is 'feral'. e.g.

For “believers in the system” they sure seem to have gone feral pretty quick.

We're the 'infidels', they're the feral citizens. Or feral government, I get mixed up sometimes.