Gun Control & RKBA

To de humanize, marginalize, ostracize, and eventually criminalize, an entire group of people, for thier "wrong thinking".
It's a decades, perhaps centuries, old method, used by prohibitionists of all stripes, against any number of percieved amoral activities.
This may not be the OP's intent, but it most assuredly is the intent of the propaganda snippet posing as a humourous PSA.