It seems to me that you can do the same but with other means. Firstly not to accept new migrants, and secondly at the slightest violation of the law to deport those who are already in the country. And most importantly, you need to cancel the grant for migrants. Their living conditions should be the same as in their homeland. Then they will seek other countries to live in.
I have already posted about this many times. It is NOT possible to deport the criminal immigrants in most cases, especially if they hail from an "unsafe" country such as Somalia. The European Union laws makes it very difficult to deport refugees and migrants, who commits crime.
Yeah mainly because we're the ones responsible for most of the shits that's happening in their country... So we're quite responsible for them migrating and losing everything...
In fact we could blame ourselves for both this criminality and terrorism... If we weren't SO DUMB maybe we could wonder why there is so much migrants now and so much terrorism and MAYBE we would make the link with the numerous wars we started in all Middle East...
But no, let's just blame Islam. Much easier. Of course Islam has been here for centuries without causing so many atrocities but facts don't really matter, much easier to accuse them.
GO LEPEN! WE DON'T WANT LOGIC OR SOLUTIONS! WE WANT A SCAPEGOAT SO WE DON'T FEEL GUILTY FOR THE ATROCITIES WE COMMIT ALL OVER THE WORLD JUST TO LIVE ON TOO HIGH STANDARDS!