Hmmm...I may try to look at that part of the video again...see if I can absorb more...something about USA industrialists who had profited very much from WWI, and wanted to do it again. So they were able to add their pressure to voices like Clemenceau to insist on punitive reparations. They were certain that would lead to a hyperinflation and collapse Germany's economy, hopefully leading to another big (profitable) war.
I remember the profiteers sold equipment to BOTH sides; the video showed a WWII German war engine (truck? tank? not sure) made by the Ford Company, for example.
But I am certain also, that FDR did something to prevent war profiteering...sounds like you have not heard much of all this, but I would always appreciate your comments/observations anyway.