The Economist is a neoliberal dish rag.
There is a completely made up number that is an increasingly large portion of GDP in OECD nations and that number is imputed rent [1]. This is a fictional number that owner-occupiers "pay" themselves to live in their own houses. So as housing prices go up, so does imputed rent. House prices have increasingly become the best vehicle for investment funds because the returns are esentially protected. But none of that produces anything.
The UK in particular has been described as buy-to-let economy.
It doesn't have to be this way. If you limit property speculation then capital will find something else productive to do, like manufacturing. Dish rags like The Economist present it as inevitable that Western nations become financialized. It's simply not true. Look at Germany. Also look at the fact that Germany greatly limits the collaterialization and speculation on property. That's not an accident.
[1]: https://www.taxresearch.org.uk/Blog/2023/02/14/10-or-gdp-is-...