The entire purpose is to raise equity prices by providing equity owners with more capital gains and dividends. In other words, it is legislation that makes equity owners richer, thus further polarizing society into a vast arena of poverty and near-poverty and the One Percent, or more precisely a fraction of the One Percent wallowing in billions of dollars. Unless our rulers can continue to control the explanations, the tax cut edges us closer to revolution resulting from complete distrust of government.
The current tax legislation drops the corporate tax rate to 20%. This means that global corporations registered in the US will be taxed at a lower income tax rate than a licensed practical nurse making $50,000 per year. The nurse, if single, faces in 2017 a 25% marginal tax rate on all income over $37,950.
A single person is taxed at a rate of 33% on all income above $191,651. 33% was the top tax rate extracted from medieval serfs, and approaches the tax rate on US 19th century slaves. Such an upper middle class income as $191,651 sounds extraordinary to most Americans, but it is so far from the multi-million dollar annual incomes of the rich as to be invisible. In America, it is the shrinking middle and upper middle class incomes that bear the burden of income taxation. The rich with their capital gains from their equity holdings are taxed at 15%.