A lot of people pay more FICA and self-employment tax than they do income tax. FICA (7.65% employee half + 7.65% employer half) and self-employment (15%) is a percentage of the gross (capped at, I think around $95,000). The income rax is a percentage of the adjusted gross (taxable) AFTER many possible deductions, some deductions would be eliminated with Trumps plan.
There are no deductions before FICA and self-employment taxes are calculated.
Don't worry about "skin in the game", there will still be too much as far as I'm concerned.
If you want to pay more, go right ahead.
What you need to understand is that there is never going to be a fair tax or likely not even a flat tax. Don’t blame Trump for the fact that its just too easy for the govt to take your money before it even gets into your hand. They will never give up that privilege. The sixteenth Ammendment is not Trump’s fault.