I understand your concerns when regarding this subject especially with current controversy involving law enforcement. But just take into account this scenario for a moment. (your walking to your car after a long night of shopping with your children, when an armed man grabs you and shoves you to the ground. He then turns to your child and pulls a knife out to stab her in the chest right in front of you. There is an off duty cop coming out of the doors of the store, he sees the disturbance and rushes to save your child. The armed man stabs your little girl before the cop can get there to help. He was to far away). Had this cop had his gun he may have been able to shoot the man before he had a chance to kill your little girl.
Now I know this scenario may seem a bit dramatic but situations just like this one happen all the time. As with all things there are good and bad, and I know that some police officers do abuse the right to bear arms, but for the most part I am willing to take a chance on those folks that have sworn to protect and serve the citizens of this country.