http://www.fairtaxvolunteer.org/smart/faq-main.html#42
"Only a dupe thinks it won't will be both taxes."
Only a childish dupe believes that the same thugs who have been stealing your money for so long will can suddenly be trusted to repeal the 16th after they get the brand new tax.
Both taxes at some point, bet your life on it. Of course, you might be dead by then, leaving it to screw my grandchildren.
I guess that no matter how far fetched your scheme has of being enacted, it is somehow even more farfetched or even impossible to do it right the first time.
Repeal first, replace second. Only a fool or someone who actually wants both taxes would do it otherwise.
A pigdog in a pokedog.