There's nothing wrong with Islam per se that's not also present in some form or other in all the major religions + atheism (yes, atheism - practiced by most on this board - is a religion in that it has tenets of faith and elements its adherence take as Gospel).

It's the extreme elements that need to be monitored and dealt with.

What's actually happening in real life in europe (contra this board) is that because they've done a poor job of assimilating Muslims into their countries for many reasons (lack of opportunity, xenophobia, etc.) many Muslims have responded with enclaves. In some cases the reaction from the host countries has been to look the other way rather than treating everyone equally. That's how you end up with Henry Nowak (and his murderer wasn't even a Muslim).

The best way is of course the American Way, which is to set the expectations out thusly:

1. This is the land of opportunity.
2. Swear allegiance to it and obey its laws.
3. Adopt our shared culture of hard work, and you will be rewarded with success especially as your generations grow.

It's really that simple.