You are trying to simplify it because it makes the situation easier in your head if you think of it in black and white, but as always, it did not happen in a vacuum.
So I will rephrase it to make it simpler for you: is it okay to kill somebody if their decisions have led to the suffering and deaths of thousands if not hundreds of thousands of people?
I think it is because I'm a working class person who is tired of being taken advantage of by rich people. Maybe you are a wealthy CEO who has never had to worry about money or health in their life and you see things differently. But I don't believe so I think you're just being a boot licker.
You might not see it yet but we are currently at war, the poor majority versus the rich minority, once again.
If you consider yourself a middle-class person then this might be an uncomfortable position for you and you will have to decide - which side are you on?
Us poor folks do not have a chance if we do not work together.