Or perhaps we could try prevent public opinion from indiscriminately hating on Muslims or Arabs, to ensure those 'normal' people aren't driven into extremism, while still acknowledging things like problem neighborhoods or hate-preaching Imams and whatnot exist and taking decisive action against such issues. Not every Muslim is a terrorist, but they aren't all saints either, and ignoring a problem won't make it go away.
Except if you lock up a hateful imam he will instantly become painted as a god loving saint and prisoner of conscience locked up and tortured those vile infidel dogs.
Soldiers were reporting muslims making martyrs out of failed attacks on outposts in Iraq by recording dying comrades with phones instead of actually giving htem any medical help.
Yes , handling them requires a bit more subtlety. If it were up to me what would be done is a campaign to get the followers of people like these hooked on drugs or at least alcohol; not openly or officially, just pushers would be stationed near where they preach. Other more subtle temptations are required too; they shoukd pay Honey Baked Ham to open up shop next door and make sure any nearby newsstands (if there are any left) carry plenty of pornography. Basically all the tempting that western religion claims Satan/Iblis does we have to step up and do.
The manufacture of scandals and spreading of vicious rumors against hate preaching Imams, provided that they're plausible.
Wouldn't that just make them be even more against the West if we actively push their followers into drugs and alcohol and pornography?
It's not even about the preachers if we did that.
Imagine, if you will, that you're an European Muslim, still a believer but not so much to prevent you from succumbing to the terrible might of Tasty Tasty Ham And Nekkid Chicks.
If you still strongly believe, not in the 'Sure, there's a (somewhat unspecific) God and we cool, plus the community is great' way - this way lies self-hatred, and people who feel guilty about their pleasures are easy to, well, guilt trip.
That, and said guy's kids may do something similar and decide to go fight their own, better Islam
with without blackjack and hookers, because you just don't get it,
dad.