Best for what and whom? Immigration is a difficult topic to be seen by itself as it is interlinked with many other policy options.
But very tl;dr: the best policy is the one that allows people to have a dignified life at home and not be forced to permanently relocate to another country.
This still leaves out a lot of externalities and external drivers of immigration though.
But AFAIK Uruguay probably has the best immigration policy in that regard (Edit: well reading more recent articles about that, it seems to becoming less good in practical application).
Best for what and whom? Immigration is a difficult topic to be seen by itself as it is interlinked with many other policy options.
But very tl;dr: the best policy is the one that allows people to have a dignified life at home and not be forced to permanently relocate to another country.
best meaning not discriminating on the basis on religion/ethnicity/etc, plus being relatively opened to immigration
This still leaves out a lot of externalities and external drivers of immigration though.
But AFAIK Uruguay probably has the best immigration policy in that regard (Edit: well reading more recent articles about that, it seems to becoming less good in practical application).
Uruguay’s immigration policy?