That's interesting. Do you have a source for that? Would help others appreciate what you're seeing.
Really bad crime is fairly concentrated.
Outside of those ugly spots, it's something resembling normalcy.
America has a wicked gang/urban violence problem in 'hot spots'. And then a more 'common problem' everywhere else, of a different nature.
And of course political/active shooter type killings are actually quite rare. Though they are way more frequent in the USA then elsewhere, and are a serious kind of 'civic problem' - they don't actually represent an risk to individuals. There's about 1 'mass shooter' per day in the US, the average deaths per mass shooter is quite small (or 0), and so it doesn't really move the needle. It's something we want to be 'concerned about' not 'afraid of'.
[1] https://ucr.fbi.gov/crime-in-the-u.s/2016/crime-in-the-u.s.-...
Despite what the headlines might have us believe.
That this is the second weirdly cynical comment espousing hugely aggrandized mistruths, this is more evidence of something odd going on than otherwise. I think we should be just as much concerned about misinformation as anything else. Unless you are in a really bad neighbourhood, or into some very bad things, odds are you are quite safe.