That is the solution.
HALT any further immigration of Middle Eastern Islamics.
DEPORT any non-citizen Muslim, or illegal alien of any ethnicity/religion.
SECURE the borders with barriers/mines/armed troops as necessary.
I totally agree. Can we do this? Are we willing to deal with the PC backlash if we do?
Your plan is a good start. ABSOLUTELY there is no good reason why ANY western country is allowing ANY immigration at this point in time. That is the first step, stop the ingress.
Certainly the Dutch have a good idea to strip people of their Dutch citizenship, we can only hope they follow through and begin and continue the promised deportations.
In all reality it will only take a small number of deportations to demonstrate that we in the West are serious about maintaining our culture.
What to do with the rest of them, and in America those like the prison converts, that part I am not sure about. In America we'd have to amend the constitution, my guess is many European countries would not have that problem. I venture that many probably already have some "state religion" even the super liberal ones, like Sweden.
If so, it would be easy to outlaw Islam in those nations, and I would suggest they do that ASAP. This will give them grounds for the re-settlement of their Muslims back to the Muslim world. Let the hordes of asylum seekers be banging on the saudi's door if they like it so much. Convert or get the heck out.
Pork is our friend in this battle. Move 200,000 hogs to the border.