The IRS barely ever audits the super rich. Trump is currently in a lawsuit about him lying about his property values to evade taxes: https://www.ndtv.com/world-news/donald-trump-incredible-fraud-trump-his-children-accused-of-lying-on-assets-values-3366445
The chart doesn't come from nowhere, the US tax system and the IRS are far from perfect. Whatever excuse you want to make, they aren't paying the taxes they're supposed to and there's nothing wrong with new laws making them pay their fair share.
Keeping your finances in offshore accounts, deductions, lying on your property values to pay less in property tax. This chart doesn't come from nowhere: https://static01.nyt.com/images/2019/10/04/us/tax-trump-wealth-promo-1570228395029/tax-trump-wealth-promo-1570228395029-videoSixteenByNineJumbo1600.png
