I found that article. That’s a purely hypothetical study with some bad assumptions that allow them to come to that conclusion(e.g. reducing corporate taxes are equivalent to a tax cut on individual taxes on the wealthy (corporate and individual taxes are two separate tax systems).
They acknowledge that tariffs might effectively increase taxes. They’re baking that effect into the income tax paid. But if that goes into place, it wouldn’t increase income taxes, but increase prices and the associated sales taxes (county and state taxes).
The only thing we’re looking at right now is a lateral change for extending existing tax policy. Maybe an elimination of tax on tips, overtime, and Social Security disbursements, which would lower taxes on the bottom 50% the most.