A press report indicates that to become Speaker of the House of Representatives, Kevin McCarthy agreed to hold a vote during this Congress on the “Fair Tax,” to abolish the IRS & the federal tax system & replace it with a national sales tax administered by the states. The bill would impose a 30% federal sales tax on everything we buy – groceries, cars, homes, health care – & lead to a giant tax shift from the well-off to everyone else.
https://itep.org/fair-tax-plan-would-abolish-irs-shift-federal-taxes-from-wealthy/
Maybe you haven't heard much about the fairtax plan, but it was designed to be emphatically progressive, explicitly against a giant tax shift from the well-off to everyone else, by including a part that mails out checks to people to not only reimburse them for taxes on essentials, but to even give them money ahead of time for that.
In other words, the fairtax proposal explicitly and actively transfers money away from the rich and to everyone else.