"Really, everywhere there is trouble in the world - you'll find extreme Islam."
You're partially right. While extremist Islam has infiltrated many nationalist and ethnic struggles - Bosnia, Chechnya, the West-Bank, Afghanistan, Kashmir, Iraq etc. - the struggles in their non-religous forms existed in a large part before the infiltration. So is the solution to generate more instability, thus attracting more extremism?
And there are many, many contemporary examples of struggles in which Islam plays no part (Northern Ireland, Sri Lanka, assorted central and south African ones).