Terrorism/extremism doesn't come from nothing. It's NOT because they immigrate here. It's because of our presence in the M.E., not "Muslim communities that grow" in our nations. (Our presence in the M/E due to our dependency on their oil...etc..etc...) see how deep the rabbit hole goes.
We can't change the past. Theorizing about the "why's" is basically a waste of time. The future is all we have.
So, what now? Despite the thoughts of some people with paranoid delusions, nobody thinks that all Muslims are bad people out to kill infidels through Jihad. But the problem is how to fight the bad actors. How to control and curtail their activities. Obama (this is not about Obama, so everybody just cool your jets) went on the apology tour. What else is he supposed to do along those lines?
The nature of modern day Islam is one of peace. The nature of the Islamist's that are a throwback to umpteen centuries ago is one of violent revolution in the name of their God.
How do civilized people deal with that faction without the help of the huge number of peaceful Muslims that by the nature of their religious beliefs will not participate with the violence that is required to deal with the radicals? And let's not fool ourselves, they are not going to listen to any form of logic. There is no soothing the savage beast. They live by the sword. They will have to die by the sword. There is no middle ground, no reconciliation, no common ground. Holding out hope that these savages can be brought to their senses will, and is, just resulting in more death and destruction.
The voices of those that hold out not just hope for a peaceful solution but demand it and loudly, must be ignored. That's step number one.
Step number two is a coalition of nations with the same goal. The eradication of Islamic extremists. Mission nearly impossible.
Should that ever come to fruition, the coalition, the problem will be telling the good from the bad. Taqiyya is going to make it that much more difficult. There will be innocents slaughtered just as innocents are being slaughtered now. We need to get our heads wrapped around that. Some good Muslims will die along with the bad. There is no getting around it.
Do we want terrorism to drive our nation, our economy? The nations of the world? To what end? Do the majority win in that scenario? There is only one path. We are divided into tribes of savages that have learned to control their savagery to a great degree and tribes that have not and cannot because they believe their God tells them that they are doing his bidding.
Which of the two evils should prevail? That decision must be made and the resolve to take the steps necessary must be made. Then, actions must put that resolve in motion.
This is a World War. Do not fool yourself thinking otherwise. The sooner we recognize that the sooner we put it behind us. It's not going to end on its own while we sit on the couch and watch on cable news the blood run in the streets of nations far away.