I think this is just further highlights part of the attraction of the message of many of those who support Brexit or Trump (as the most obvious examples within the Anglo-sphere).
The globalised economy to include the free-movement of everything across borders benefits some, generally those in positions of economic influence (in the case of Airbnb, landlords etc) and damages those with less economic influence ie renters. Mass movements of both tourists who will rent entire properties on a short-term basis and migrants who are willing to sleep 6 or 8 to a room are quite clearly a more lucrative option for a landlord than a young civil servant or Engineering graduate whose entry-level salaries don’t extend too far.
Such issues are very real concerns for many people but when aired publicly tend to be discarded by the same exploitative vested interests as the ramblings of racists or loonies. However, while some hear claims to close borders as metaphor for a form of xenophobia or racism, others simply hear a call for a return to a time when having a home or even a secure job wasn’t beyond the reach of ordinary people.
There will come a point when all this will come to a head either through public unrest or the rise of some form of new politics. Its already happening elsewhere. As noted on this site over the years with regard to numerous other topics, Ireland is not different.