It's a normal building with normal apartments, not a ghetto or a prison.
Also - and I have no idea how you'd quantify this, lack of negative comparators may play a part. When most people in your city, be it Mariupol or Tallin, also live in enormous modernist silos, it's not a source of resentment.
Finally it's important to note that by comparison to any US city, Croatia has a tiny crime rate, especially in terms of violent offences. It's a safe, relatively ethnically homogeneous, socially integrated country. This is not similar to the lack of social cohesion in play in the American context.
https://cafebabel.com/en/article/life-in-mamutica-the-bigges...
That's just normal green space, at least for that part of city :) I lived a few blocks away when I was at university.
> amount of amenities which survive from Soviet times - skating rinks, public parks, ice skating rinks, bowling alleys etc. Added to which is a grey economy of apartment run stores selling fresh and preserved produce.
I would not say that is true of Croatia. Stores are mostly large chains (and it's for the better, in my opinion). Parks are there, sure, but other amenities didn't seem any more prevalent than what I saw in Los Angeles.
Anyway, my general point is that large density housing can be pretty nice and does not need to be ghetto-like.
However, we've been down this road before. Cramming people - especially homeless people, frequently with mental health concerns, polydrug use, and severe behavioral issues; into a giant cube isn't how you solve homelessness.
These people need their own homes, in neighborhoods with services that support them, integrated into the community.
Disastrous efforts to ghettoise the poor in small under-serviced apartments in the 1960s lead to social problems that persist to this day in both Europe and the US. I believe the're generally termed 'the projects' in America.
My comment was a sarcastic reaction to the ahistorical and ludicrously reductive lack of insight or thought in the original proposal.