[Hugin]

Pre-Trump article.

[OddLane]

It is, but I still think this problem is worth examining in detail.

The welfare state, combined with open borders and the flood of cheap imported labor, in concert with negative cultural changes have created a huge problem that still needs to be addressed.

[Tallguy]

These kinds of studies usually lag present-day reality by a few years. The more intensive the study, the greater the lag to publication.