Roughly a third of my work effort goes to pay tax, a tenth goes to pay accountants and another tenth (at least) is taken up by planning, managing and recording for taxes, and god knows how much worrying about the whole stupid maddening meddling mess.
Give me a consumption tax, no accountants and no recording, reporting or auditing, no muss, no fuss, and I'd gladly take the net salary I have now and kiss you for it.
That is a valid position and I am somewhat inclined to agree that a NRST could possibly work, but only if it is sold honestly, if people are expecting their full paychecks and no change in prices they are going to be very unhappy when they realize that won't happen.