All Japanese be killed in an earthquake

Korean said 「All Japanese be killed in an earthquake.」

http://www.youtube.com/watch?v=nYMqQmajp8g

Hey Japanese people.
So you guys are already contaminated with the radiation?
Isn't it just scary?
Well I'm guessing that devastating earthquake is going to
hit Tokyo and kill a lot of people,
which I really can't wait for it.
I'm always thinking Japanese people dying, but I can't kill them
directly, so it was really exciting to hear that Japanese people are
dying from the natural disaster.
Well, im going to stop here and watch Japanese suffer more from
the earthquake.
Hope you guys die soon.

Just wonder,,,,

Some Japanese say Korea improved so much because Japan dominated them, so Korean has to thank that.
But Japanese also says atomic bomb was a wrong idea even though Japan became a democratic nation and improved so much.

Is't it contradiction?
I am Japanese then what this video's saying is really sad.
Yet, it is all result that Japan did toward Korea, and we have nothing to do.