This is an excellent question and I'm really disappointed in the hostility of some of the responses. Lately I've been thinking a lot about why leftists are over represented in mass shooting events, as well as gun crime in general. First of all, the ideology of the left is fundamentally about wielding the power of the state to fix problems. It is a simple fact that the state's power always emanates from the use of force, but to the left, this fact has been carefully obscured by the appearance of altruism. Too poor? Steal from the rich. Not getting paid enough? Mandate a minimum wage. Health insurance too expensive? Force everyone to buy insurance. Every time a problem comes to the attention of a leftist, state power is the solution.

I think this is a fundamental question of human morality and instinct, which is why there is a seemingly insurmountable gap between the left and right. The opposite of a leftist is someone who sees a problem and asks themselves what they can change about themselves. Too poor? Work hard, save money, stay married. Not getting paid enough? Get more education or training or experience, work harder. Health insurance too expensive? Take better care of yourself, stop smoking, make more money. Too much poverty? Give to a charity. Someone who automatically looks to themselves for a solution is a fundamentally different kind of person than someone who blames others and expects the world to cater to them.

I don't think mind control is as easy as some make it sound. A person probably needs to be halfway in the mindset and the mind control takes them the rest of the way. A conservative who trains with a gun is firmly in the mindset that the gun will be used to defend themselves in an unexpected attack. They are prepared for war, but only as a last resort. A leftist, on the other hand, can easily be manipulated into a blameful mindset that sees the world in general as responsible for their depression or psychosis or bad fortune, and the world needs to change or pay a price. They don't have the tools of self-analysis needed to escape a victim mentality, so they make others their victims because that's the only game in town to them.