You fail at math.
A 16% increase in billionaires in the US would equal 59 new billionaires.
A 16% increase in millionaires in the US would equal 1.25 million new millionaires.
As for your assertion that 'someone making $100k/year is supposed to be able to become a millionaire', I'd suggest two things:
1] you've pulled that idea, like most everything else you've posted here, from your anus, and
2] there are very few people who can increase their net worth to 10x their annual gross income at any level of income - this has always been true, though ti does become easier with greater disposable income.
All that said, I know of several folks who are millionaires who make less than $100k annually - they do it through living frugally. Most people in this country don't have the self discipline (or the desire) to build their net worth to >$1m - they are satisfied if they can have what they want right now.
One last time, if you wish to continue this discussion, you're going to have to post something other than your inaccurate assumptions as if they are somehow accepted as fact. Show some actual data, some real numbers, or you can continue talking to yourself.
You'll never hear me argue that taxation in the US in unfair - progressive taxation is modern slavery, in my opinion. But the tax rates among middle class and higher income levels is nowhere near as high as it's been in the past, which means we have just as many opportunities to earn higher income now as ever before with regards to taxation.