Uh, no. your argument was ""NOT A SINGLE American passenger made ANY move against the terrorist."
You don't get to change your argument because it's impossible to prove.
Wish I could help you out, but I still can’t find any evidence that someone other than the Dutchman was involved in the initial takedown of the terrorist, though at some point obviously the flight attendants became involved. It therefore appears that the premature assumption that it was Americans who reacted so quickly and admirably, is false.