Yes, it would be almost unthinkable now.
OH and I were re-watching 'The Secret History of Our Streets' about Deptford last night. My partner finds it quite upsetting as he was from one of the redeveloped streets and is of the view that refurbishment rather than redevelopment was possible, and that redevelopment destroyed communities.
Nowadays we wouldn't think of destroying streets of Victorian houses in London as they are popular with gentrifiers.
I was saying to him that it's still going on only this time it is council estates. The term 'social cleansing' is recent but it has been going on for years - people treated as expendable, homes treated as commodities.