He does a good job of illuminating it here: https://www.youtube.com/watch?v=BTlUyS-T-_4

His basic message is that rich people own assets; everyone else operates with money. Every time there is inflation, like when countries borrowed massive amounts of cash during 2020, money becomes worth less (prices for things go up) while assets maintain their value, by going up in dollar value.

There is an argument that Labour NZ and Democrats US are more neoliberal than left and their policies are largely based around giving subsidies or aid in a way that increases demand for things which drives up the price. One example of this is "University for Everyone" that was started during the Clinton era in the 90s. On the face of it, it sounds like a really positive idea. Unfortunately, when everyone had money for college, the price of tuition skyrocketed. Another way to approach this would have been to build state-owned schools that offered cheaper tuition.

In New Zealand we do similar things, like the accomodation subsidy. We spend $2 billion dollars a year to help people who can't afford rent. Again, on the face of it, it sounds like a really important thing to do. But when there is $2 billion dollars a year injected into the demand-side of the rental market, we get higher rents. Another way to approach this would be to use the $2 billion per year to build non-market housing.

It almost seems like the two-party systems we find around the world are designed to make the rich richer, while one of them is designed to make it hurt slightly less while they still facilitate it. This creates the perpetual cycle of voting against one party instead of voting for the one we most align with. This is why the people in power do everything they can to prevent single-transferable voting (STV) or ranked-choice voting (RCV). We're lucky to have it in local elections.

For parliamentary elections at least we have MMP. So, there's that.

Basically you can charge poor people more money. For example a poor person can't afford a large sack or rice so they buy smaller packets and pay more per kilogram. Same goes for everything from toilet paper to detergent.