> People rant about the rich “paying their fair share”, but the problem here isn’t the tax rate applied to the rich, it’s that they don’t pay anywhere near it.

Yes, but the rich nonetheless pay the lion's share of income taxes:

The share of income earned by the top 1 percent of taxpayers rose to 20.6 percent in 2014. Their share of federal individual income taxes also rose, to 39.5 percent.

from https://taxfoundation.org/summary-latest-federal-income-tax-...