Police forces are heavily militarized because of the bonkers amount of money thrown at them in the name of the "War on Drugs" and more recent "War on Terror". Note the connection between "war" and an increasingly militarized police force.
Do you have to list all the things you aren't protecting your home with?
A better response to mass shootings would be to desensationalize the media coverage, which since Columbine has been indulging the shooters' motives to shock society.
Incidentally though this whole thread is grossly off-topic and I expect it will be collapsed or detached.
Gun laws haven’t gotten laxer in the last couple decades either - many states have strengthened them. There isn’t a clear connection between weak gun laws and mass shootings.
(That said, a total and effective ban on guns would of course stop mass shootings and other gun violence - if it could be implemented successfully)
But then, the cherrypicked, tautological nature of this goal is elided by gun control advocates--reducing gun violence without addressing the root social causes of violence is just a shell game.