What is the problem with this? Everyone should be paying the same amount. Just because someone makes more money or makes it differently doesn’t mean they should get a discounted tax rate. That said, having a SLIGHTLY higher rate for some of the top % isn’t necessarily a bad itea. Yes, a slippery slope but at some level someone making $50K, $100K, $1M, or $1B a year should be paying slightly different amounts. The $64K question is the right mix so we do not penalize people for being successful.
Or, we set a flat rate at the highest amount and then rebate a certain percentage. One thing I think is very important is that EVERYONE should be paying something. No freeloaders unless they want to give up their vote. Out about that as an idea, must earn income and pay taxes to vote. Freeloaders get no vote as it is not their money they and their elected choices get to spend.
FLAT TAX is the ONLY answer. EVERYONE should pay the Same Percentage.....everyone!