Is part of the reason for inciting so many random shootings via mind control to empower governments to outlaw private ownership of firearms and thereby leave civilians defenseless?

This is a major goal of the widespread violence being induced. If humans were left on their own, violence from gun use would be a minor problem and a rarity across the board. It is only through spirit meddler corruption that people turn to violent thoughts. And the overlay of extraterrestrial mind control has ramped this up to both increase the number of people induced to take such action, as well as the level of severity, and the planning and coordination of the large-scale target groups shows the impact of the Extraterrestrial Alliance being involved. The ultimate goal is to disarm the world and this will only hasten the annihilation of human, because even though small arms are not capable of turning back an extraterrestrial invasion in force, they are a meaningful deterrent when the numbers are not so large and the likelihood of casualties exists, as these beings have no desire to lose a single one of their members at the hands of a lowly human. This is the mask they put over their inner cowardice, and it is serving humanity at the moment for them to regard their own lives as so superior and so precious.