I see you and raise you:
Supression of the Albigensians
Expulsion of Moors and Jews from Spain
Catholic Inquisition
Supression of the Hugenots
Thirty Year's War
...and so forth. Obviously, by your logic, Christianity is just an excuse for bloodletting.
The difference is that I mention recent history.
Honestly, on 9/11, when you saw planes flying into buildings, you didn't say to yourself:
"Those damn Swiss - we buy their chocolates and this is how they repay us"
You knew damn well who it was.