The new members wouldn’t exactly be flocking to Buffalo, for economic & climate reasons. Even with the growth of the Latino & Philippino population in NJ, there will be more consolidations like this because the number of available priests to serve separate parishes is dropping, the building are getting older and more expensive to maintain, and there is no reason to build new churches as Americans attend less and less.
Buffalo has a large Hispanic population. The whole West side is essentially Hispanic.
Not to mention Polish, Italian, and Ukrainain in other parts of the city.
All large, very strongly Catholic populations.
If Catholicism is dying in WNY, it does not bode well for Catholicism the rest of the nation.