Islam, a growing threat to the free world?

[Existentialist]

(even if we accept, which I don't, that 9/11 was an example of "Islamic terrorism")

What was that an example of?

Al Qaeda terrorism. Haven't you been paying attention?

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There wasn't long standing hatred between Sunni and Shia pre-US invasion.

OK, whatever, you just go on believing that, then. Islam is the religion of peace, love and warm fuzzies. Whatever.

Alternatively, you could produce some evidence that

There's a long standing hatred between these two groups, a hatred kept in check only by the brutality of Saddam.

Or did you just invent that to fit your argument?