I don't think anyone supports wiping out the country, but it is to the point where a focused military strike is the only logical option. I'm sure we know several key locations where bombs & rockets are manufactured and launched, and we need to drop bombs on those places. It won't happen but striking the presidential palace and any other known places Kim Jong Un is known to reside should be considered as well.
Unfortunately there will be casualties, but I have no doubt in my mind this guy will kill as many Japanese or American people as he possibly can. Of course, that is assuming they can actually hit a target but it isn't a chance I am willing to take.
I don't know if we'll ever get China's blessing, but China is upset over the nuclear test.