I think he meant to say Gen Z monopoly?

Over half of us have a home:

The story is similar for millennials: 54.9% of millennials owned their home last year, essentially

https://www.redfin.com/news/homeownership-rate-by-generation-2024/

Same in Australia

Over half (55 per cent) of Millennials, 25–39 year olds, are homeowners compared with 62 per cent of Generation X and two thirds (66 per cent) of Baby Boomers when they were the same age.

https://www.abs.gov.au/media-centre/media-releases/owning-home-has-decreased-over-successive-generations

edit: just realised this tweet is from 2018