“Because green skyscrapers and high-rises are a bullshit non-solution to serious systemic problems.”
“But if you want greenery on a building nonetheless, do I have an idea for you – a portable, modular, scalable solution called ‘potted plants on your balcony’.”
For now, if richish people want to pay for it in their flat, go for it. (It would be interesting to see the carbon cost of the extra materials though!) They can pay for the building and maintenance, and everyone else gets a cool building to look at.
The hopefully the kinks get worked out and it can be done cheaper on other buildings.