Personally, I don’t think people should be paying a cent of income tax until they’re well on their way to an upper-middle class income. Taxes should always be taken out of surpluses, and never make it harder to achieve a baseline level of comfort and stability. The same should apply to new businesses—not a cent of taxes or fees until revenue is sufficient to support its owner(s), and perhaps even a few employees. If you tax something, you get less of it, so we should be very deliberate about what we’re taxing. If we tax the road to the “American dream”, a lot less people will arrive there.
Whatever tax increases are required on the wealthy and larger businesses to accomplish this would be well worth it imo. A big, healthy middle class with lots of new business formation benefits everyone, including and especially the wealthy.