I don’t know if millionaires are gaining that much (this country has a lot of them if you count assets like a house - 1 in 15 Americans are millionaires, so I’m sure that their fortunes may vary under this maladministration), but the centimillionaires, billionaires and now centibillionaires like Bezos seem to be doing just great.

https://en.wikipedia.org/wiki/List_of_centibillionaires