Thinking on - another name to consider is of course Ian Davidson, but the over anger and chunky lyrics are not typical of him or the others considered above.
Anyway, Ian, Jim and Adam all wrote also about the shortcomings and evils of the tenements that were replaced by the schemes etc. This songmaker only does so as a final addon, and I speculate is of the next generation, so did not see the tenements in action.
Yes, the schemes have their own shortcomings and evils, this writer knows them at first hand and hates them, but places the blame on one person to represent all the politicians, town planners, social planners, architects, etc.
I've never lived in a scheme, but I had friends who did, and I was in my time in out of many houses, and involved with various projects, arts events. etc run by people who lived in 'schemes'. Most of the people I knew and worked with would I fear feel insulted and wronged by the accusations and oversimplification of these lyrics.
There is more to the story of Glasgow schemes than this furious song talks of.
Ewan