Here’s an example: In the 80’s, in London and elsewhere in the UK, plenty of brutalist towers were demolished and replaced with more traditional brick two story houses, only for the residents to realise that they had taken a big downgrade to smaller darker houses, and were still living in a community with the same social problems as before that people said would be fixed by changing the style of architecture.
Brutalist architecture is a branch of modernism, like jazz and abstract paintings. Most of it is experimental, some of it is shit design and sticking plastic ionic columns on it wouldn’t fix it. I don’t think you can seriously dismiss the whole genre as the product of mental illness.