The political persuasion of people who use guns to solve their "problems" isn't really cogent. It's the fact that whacked out idiots have guns in the first place. The only way the politics enter into it is, as has been noted, the fact that the right wing is the one that ensures that any loon can easily and legally get a gun.

The OP seems to assume that we all think there aren't any crazy, violent people on the left. Seriously bad logic, and insulting as well.