So the lives of non-Americans are so valuable that 400,000 Americans have to be sent to die to protect them?
I would like you to know that you are beyond all forms of parody.
You didn't answer the inherent contradiction of killing people to save lives.
And you aren't answering to the fact that you think that American lives are worth more than others'. You are basically saying that it wasn't worth it to go to war in Europe (which was almost entirely unpreventable) to save millions of lives, at the cost thousands of American soldiers. Don't get me wrong, I don't want any American to die, but without the American offensive, the Germans would have been able to hold the WWII Western Front. This would have led to more than just the 400,000 american deaths.