I know people who still won't buy a Japanese car because of WW2. Reminding them that the people who caused WW2 are long dead (Including FDR) does no good. They are locked into the hatred and nothing can shake them. Reason is futile.
I'm not responsible for what my ancestors did to the Indians, or the blacks. You Brits are not responsible for what your ancestors did to the "Sheet" Indians or the Boers.
We ARE responsible for what WE do, and what we allow our governments to do.

Point of fact, it was an American who invented the machine gun, Hiram Maxim.He also invented smokeless gun powder.

America is the only country that ever dropped an atom bomb on civilians. I had nothing to do with that, being 11 years old at the time.
This guy sounds like a hate monger to me.