I have two main gripes with the video:

1. Skyscrapers are overkill, just making middle density the norm in our suburbs would go a long way. Spanish cities can be used as inspiration.
2. Supply alone won't fix housing unaffordability, which is also driven by privatisation of the housing market, cash-strapped local governments raising land prices after budget cuts and homeowners not wanting to see their homes lose value.

The channel as a whole gives me a bad vibe as well, it comes across as aka Dutch redditor