Folks, while these are some good choices, alack and alas, you're incorrect.
The MOST Politically Incorrect shotgun is ANY shotgun held, possessed, fired, operated, etc, by a free, law abiding and responsible human being.
The scary looking shotguns,and other weposn of course, get the attention, but the basic facts is that aware, ARMED and responsible people have the odd idea that they are responsible for their lives and for determining their own destiny.
Those that believe they have the right and duty to control other folks' lives(for their own good,of course) find this abhorrent.
To them, it matters little whether it's an ugly black Loudenboomer SP, a bolt action SS 410, or Grandpop's LC Smith grouse gun. Held by those uninclined to tolerate tyranny disguised as benevolence(for the children),all tools for resistance are evil, and those who fail to conform to Groupthink are also.