> It’s never been easier to become a billionaire, or harder to become a millionaire.

I think this is factually incorrect on the second point. The US mints a net of about 300K millionaire households per year. (This means more than that on a gross basis as millionaire households who die off or who fall below the threshold are all replaced plus an additional 300K.) About 1 in 12 of US households are millionaire households up from about 1 in 20 in 1997. (In both figures I attempted to exclude the value and debt on primary residence)

The sad part is that being a mere millionaire household doesn't mean that much anymore. It provides around $40K per year in safe income or about 1.5x the federal poverty level for a family of 4.