Should people show them sympathy?
Of course, there's absolutely no need for the assertions that the end of western civilisation is upon us on order to do that though.
Back when I was a teen newspaper columns were constantly full of older people complaining that my generation were nothing better than a bunch of glue-addled thugs, with a predilection for knifing folk, no respect for anything or anyone, and that if the nation was dependent on us to be the grown-ups of tomorrow then we were all doomed.
This 'it's getting worse' thing isn't borne out by fact. Crime, especially violent crime, is falling consistently year on year, and so far my generation don't appear to have ruined society in the way that was being predicted a few decades back.
It's something that is levied at every generation, and there's no truth to it whatsoever.