Sounds like gun-grabber garbage to me. The vast majority of gun owners put in time at the range, most regularly. How is someone, simply by being unskilled in firearms, MORE DANGEROUS to the public than a CRIMINAL. Did you really think before you typed? A criminal, by the friggin definition of the term, is far more dangerous to you or I, than some guy who doesn't know much about his gun and will probably never use it. DUH. The person who can't drive but owns a Ferrari, is less of a danger than the habitual drunk driver. To insinuate less is to pander to the sense of "nobility" that is apparently being inculcated into "peace officers" these days.
Now do many cops lack such training and end up a threat to innocents: of course, people don't realize that such training is both time consuming, and can be expensive if you don't have proper ranges, hence many small and mid sized PD's either don't get the training due to budget constraints, or rely heavily on ex-military trained officers. That does not solve the problem, either, as you know that such training is easily lost in time.
Final point: combative attitudes as you expressed usually end up receiving combative attitudes. When you and I put on badges-remember that there are many out there who can out-shoot, out-muscle and out-fight you, and you never know that by first impressions. I come from a family of LEO's, experience shows that such attitudes should be last resort. Try calm, organized debate. It will get you farther.