This sort of thing is not helpful to the cause of gun rights (found on a towel dispenser in a bathroom). If this particular politician was signing orders to put people in cattle cars to send them to the “camps” then sure that would be appropriate. But we aren’t anywhere close to that.
When Alan Gura spent time with a bunch of gun bloggers at the NRA Convention last May I asked him what bloggers could do to help the civil rights war. He said (paraphrased), “Make guns fun. Don’t bring up or associate with Threepers. It scares people.”
I’ve elaborated on this sort of thing before and don’t see a need to elaborate further at this time.