Shouldn't we just bomb the hell out of North Korea?

No. Even if a gun is smoking, that dont mean it is pointed at you.

this whole "reaching for the bombs as first option" mentality is getting extreemely dangerous. especially for the US.

Leave it to China - who is considering embargoing PDRK.
Bombing NK would SERIOUSLY annoy the Chinese - the prevailing wind is easterly, so when the mushroom cloud rises over where Pyongyang used to be, WHERE DOES THE FALLOUT GO? Beijing, that's where.
China is too big a bite to chew, even for the US. "Let the Dragon sleep, for when she wakes, the world will tremble!" (Napoleon)

How many nations do you think are worried about the US using its vast arsenal of nukes on them or their neighbors?

And how many more do you think would start worrying if the US just bombed North Korea as you seem to think they should?

Shame on you.