Talking tough sounds good... at least to those who don't have relatives in Korea.
I'm going to say this only once because I think you know the truth here. What possible sense is there in killing millions of people who have done nothing, just because of evil decisions by a few hundred people in key positions in North Korea, and a few tens of thousands of bureaucrats who implement those decisions and are at a level where they actually bear responsibility for them?
The vast majority of North Koreans are victims of their own government. Let's not forget that.
Decapitation of the North Korean regime needs to be the goal, not killing millions of North Koreans.
And no, they're not victims as if America can only be evil.