Exactly ....
Everyone should get support when there are wars or similar in their country. BUT they must not behave like that in the country where they get the support they were looking for.
If they do so -> go back home and see what you get there.
In this specific case, everyone of them should get thrown out of the country, back in there own. They had there chance and lost it. And this should be done in every similar case.
Maybe then, they realise that there are different rules in different countrys. In their country, i'm not allowed to do certain other things, but they want to do everything they want.
I have absolutely nothing againts migrants, but this is not ok and there has to be set a sign. No country should tolerate such behaviour.