TL;DR: economists are still stuck in the idea of the market as a perfect force for reaching optimal outcomes. They’re ignoring the simple fact that businesses are putting prices up purely to increase profits. And that they can do this because the economic ideal of perfect competition (where many small firms compete with near-identical products) does not exist. We have a small number of very powerful businesses—oligopolies—in nearly every market for consumer-facing goods.
You’re missing basic knowledge, not new data or a political trend. If you live in the western world, you should know everything is about debt and inflation. How can college cost 75k a year? Access to debt. How could people but housed after 1975? Access to debt, how can people afford health care? Access to debt. Every time a large portion of society gets ahead of the curve, there needs to be price increases to increase the debt. That’s it. That’s everything in the US and many western countries. The debt has to be increased. That is where the wealthy make the most profit.