Two-thirds of the House (290 votes) and two-thirds of the Senate(67 votes) have to approve the amendment proposal, then three-quarters of the states (38) have to ratify it.
You;ve been able to get 59, 3 and 0 on board for the FairTax in over ten years trying. I'd say the gap is very wide. "Snowball's chance" wide, but you're not even close to the majorities of the House and Senate needed to pass your radical tax scheme, so the 16th repeal/rewrite is a moot point.
Until then you may fuss and fume about it all you wish since such is meaningless.