If one accepts that immigration has propagated an irreversible flight from the cities of affluent whites...
Then expect approximately a 50 year expansion of urban density into suburban and rural areas.
As people move further away to "get away from it all," they will miss the things they are getting away from and build more stores, mini malls, hotels, repair shops, and such in rural areas. Look at 2 areas in the US: The state of New Jersey for an example.
Between New York City and Philadelphia runs the New Jersey Turnpike. Look at it from google earth, look how developed it is.
Same is true between Boston and Providence. this is not a good development, but a seriously bad one.
After 50 years or so, a new generation of Irish will want to re-invent cities, they will build mix use zoning lots, and publicly funded urban art programs. It will be costly, and only so-so effective.
But why repeat the problems America faced, when you can avoid them now?
Urban sprawl is bad, white flight is a leading contributor to it.
City decay is bad, white flight is a leading contributor of it as well.
I could go on, but I suspect I am preaching to the choir. Whether you are socialist,
FF,
FG, Green, fascist, racist, athiest, whatever-ist...
you have a vested reason to oppose the death of your urban centers due to white flight.