This is all landlord propganda bullshit.
There are MILES & MILES of buildings, across 5 boroughs, that are in great shape now, and don't look a bit different than they did 70 or 80 years ago - including the building and the whole street that I was raised in.
Never debate something you know nothing about, and the other person is an expert on that subject.
The building I was raised in, in the Fort George neighborhood of upper Manhattan (New York City) was built in 1908.
And I lived in it from 1946 to 1967 (visited it until 1977) and under rent control the entire time. Good condition - then & now.. Same with dozens of other buildings throughout the neighborhood. All rent controlled, no shortages, no buildings abandoned. Nothing destroyed. Everything now as it was 75 years ago. Now fully occupied, landlords making decent profits all along.
View attachment 1192379
This is a recent picture of the street (Ellwood St - 197 St) that I grew up in, in the 1940s & 50s. If this picture were taken then, it wouldn't look one iota different than it looks right here in the 2020s.