Looting and rioting is terrible and indefensible. But it's ridiculous to conclude that the population doesn't care about its community just because a few terrible people act like idiots and trash the place. Do people in
New Hampshire not care about their community?
San Francisco?
Vancouver?
Southern California?
Interesting that you bring these stories up as "comparisons".
In New Hampshire, the link you posted references "college students". Did you go to college in your home town? I sure didn't.
The next two are sports related incidents. Are all spots fan's residence of the favorite team's city? I'm a Redskins fan but live about 2 hours from their stadium.
I followed the last link, in Huntington beach - a surfing competition where a bunch of teenagers and 20 some year olds rioted. The link tells you where those arrested are from. Only 1 of the 7 are from where the rioting took place. Thus you again can't ask if they don't care about their community - as 6 out of the 7 didn't riot in their own community - just like the other situations you referenced.
Now I'm not saying all those who are rioting now in Missouri are from there, but I would imagine most of them don't live too far away.