No, you're over-simplifying this by assuming we can resolve a humanitarian issue with a war. We can't. Even conservatives like Steve Bannon know this. The Iraq War plus its aftermath has a death toll approaching 1 million, 1/6th the size of the Holocaust.
You are catastrophically underestimating the size of the Holocaust. 6 million is only the Jews murdered by Nazi operations. Another 5+ million non Jews were murdered, plus, since we're comparing follow-on effects of war, many more millions of military fighters and civilians bombed.
No one knows how many people die in North Korean concentration camps every year. But you can be sure that the total number of deaths will increase every year that the Kims are in power. There is no solution but war.
Exactly, we don't even want to give Puerto Ricans the support they need, so what's the chance Trump won't drop some bombs, declare victory, then leave millions to rot?
Iraq war Was fundamentally different. NK is extremely hierarchical, once the leadership is removed, the country can be reconstructed much easier. I can't say I care about Seth Bannons opinion.
China, who knows them best, seems to disagree. Otherwise they would have taken care of the Kim family years ago.
There were similar "this is different! It will be easy!" arguments made for Iraq as well, especially when people suggested it could be like Vietnam (in the quagmire sense, not US causalities sense)
Conflict with North Korea will be even worse.