I see; so the major premise is '
Islam is defined by its followers'
And the minor premise is '
the vast majority of the Muslims are neither radicalized nor involved in acts of terrorism'
Whats the conclusion then that '
Islam is neither radicalized nor involved in acts of terrorism' ?
Nope; not gonna happen.
The lack of an ecclesiastical order is integral to main stream Islam and remains both a blessing and a curse of sorts; a blessing because there is no central authority to tell us what to do and a curse because
well there is no central authority to tell us what to do.
Islam expects each Muslim to be his own priest; in the past that didn't create nearly the amount of problems that it has today. Muslim fanaticism was a thing unheard of at nearly the same frequency that it is today. Why ? Islam and Muslims were there; what then changed ?
The way I see it the present predicament is a conflux of 4 events:
(1) the Iranian Revolution of '79 and with it the Ayatollah's exporting their Revolution to every corner of the Muslim world with Shia pockets.
(2) the Arab response to that revolution by them exporting their counter-revolution to everywhere with Sunnis.
(3) the so-called Afghan Jihad where a toxic concoction of Religious Fervor and Firearms was conceived by Pakistan, America and countless many Nations in the East and the West including quite a few Muslim countries, to defeat the Soviet War machine.
(4) the extremist pockets created because of the above 3 proliferating across the Muslim world.
That said; we still mustn't forget that every survey or study I've come across points towards two things:
(i) Muslims overwhelmingly so reject extremism including Gallup surveys that I've seen where Muslims reject it more so than other faiths or belief systems out there.
(ii) Terrorist attacks in Europe and the US carried out by Muslims forms a small fraction of all terrorist attacks carried out therein; so European and American Muslims ought not get the flak for it as if every time a Muslim Fanatic does something they ought to justify away and have to vocally condemn it every single time and still be told that that Moderate Muslims are not condemning it.