Take cars specifically. The US makes 11 million new cars a month. If regular people can't afford them, are billionaires really buying up all those cars? How many new cars does a billionaire need? Where are they parking them all?

I can believe your explanation with money. I can even believe it with houses, with rich people buying up houses as an investment. But I can't believe it with cars. Regular people are buying new cars, and regular people think they can't afford new cars. How do we make sense of that?