OF COURSE there "... won't be any less numbers of people not paying anything and getting other people's money ...". That's just the point. There will be far MORE people actually contributing to the tax revenues than at present (some of whom you see on these threads attacking the FairTax because it destroys their litte corner of tax-heaven they have all carved ourt).
And the prebate taxpayers are being paid comes from their own tax payments. As for your "all kinds of ways" bravado, tell us some ... and how the same sort of thing is not going on right now (and on an ever greater scale).
I already told you a few ways to get around the fair tax. :-)