The Obama CDC study on gun control concluded that guns are used to stop far more crimes than they are used for in crimes. It concluded that a household with a gun saw far less bad outcomes than a household without during home invasions. It concluded a lot of things that didn't sit well with the left, so after all the fanfare to make it, it was downplayed by that admin. Read it, it's quite interesting.
Think through that a bit.
Citation please. NCVS data puts defensive gun use around 70K instances per year while OJP.gov data puts firearm crimes in the 400K range.