It's going off-topic now for the thread, but since you mentioned it: Some European countries do just that.
https://www.dw.com/en/over-100-islamic-state-fighters-return...
> Authorities believe that 1,060 IS fighters left Germany for Syria or Iraq, of which a third have since returned, the Interior Ministry said. Germany is taking a "holistic approach" in dealing with ex-jihadi fighters, including deradicalization and reintegration.
https://www.bbc.com/news/world-europe-55387991
> Germany and Finland have repatriated five women and 18 children from Syrian camps housing suspected family members of Islamic State (IS) militants.
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Incidentally, on the thread topic, I too turned my back on the US and returned to Germany in 2004 after about 8 years and with no visa or job trouble and a good outlook. Back to Germany, in my case, and also after thinking about the bigger picture. I'm a co-founder of a small software company here now. Healthcare, politics (so divisive, and divided, here in Germany it's so much more mild except for the far-right Russia-friendly AfD party), housing costs. Well, the latter is really bad now in Germany too but the rest remains good.