Sharply "progressive" tax rates are a "power and control" tool of the globalist Lefties.... immoral, too.
Ideally I support a true "flat tax", but I can go along with Trump's "relatively" flat-tax as a practical compromise. Should also include taxes on corporations earnings* world-wide with no exemption to avoid corporate taxes just because earnings are "accumulated" offshore.
*With corporate taxes already paid on earnings, dividends should be tax-free... not taxed a 2nd time as income to shareholders.