I'd say he does bring pretty convincing arguments to the table and his logic does make sense.
if you take all the wealth and give it one group of people who don't put it back into the circulation but rather just invest it, it makes sense that there's no resources left for anyone else and "everyone" else is comparatively poor.
That's a typically successful but dangerous social media recipe.
There is "investment" that doesn't cause more activity, like having a second home for speculation purposes that you keep empty. But in general, investment leads to more production, and ends up creating employment.
https://birchlermuesli.substack.com/p/copy-garys-badeconomic...
Call it biased, but I'm also a priori skeptical of any public intellectual that points to their one pet theory as the cause of society's ills.
Managed to get on Question Time because he's very good at telling people what they want to hear.