$10,000 invested for ten years at 10% minus 30% taxes: $19,671.51$19,671 spent with no NRST = $19,671 in purchasing power.
$10,000 invested at 10% for ten years with no taxes: $25,937.42
Not even at all..
1) people see what government costs
2) no compliance costs .. hundreds of billions
3) no IRS to examine your bowel movements
So you're about even.
You could make that argument. You also can make the argument that the NRST would reduce prices by about 10-15% without affecting wages so you're actually ahead.
As it is now, tax deferred accounts are taxed upon withdrawal with the one exception of Roth IRA's and who knows what congress will do with those things in 25 years when SS is broke. So in the case of a NRST at least you KEEP what you make.