> Those who fail to benefit the country in which they are guests
That's hardly more specific. In an attempt to steel-man - before you edited your comment (or left another one? hard to tell in the HN UI), you referred to criminals. Well, this incentive is pointed at all migrants, not just criminals. I struggle to understand how law-abiding immigrants don't benefit their host country, yet the Swedish government would like to see them leave as well.
Yes, I edited the comment as I decided that criminals is too narrow. It's really a simple evaluation of whether you extract more value than you produce - which is usually true with criminals but could be expanded to include any migrant who is receiving state benefits while not making efforts to contribute going forward. Now, obviously there are exceptions and caveats but I posit there's a larger group of non-criminal migrants who are still a net-drain on the society that's supporting them.
Depends who you're moving.