You're daydreaming as well as poorly informed.
There is no "23% or 30% tax on everything". Only end consumers are taxed and only on taxable items (not everything is taxed). Many tupes of transactions are not taxed at all (busines-to-business sales, typically, for things used in making or providing taxable items).
Actually there is plenty to prevent the rate r=from "being upped" - even some of the founders of this country knew that and said do. In addition, there is the fact that "upping" the rate raises taxes on everyone and not just the select subset that paaay taxes as at present. A similar comment applies to trying to make other things taxable. The bill is very specific about what types of things are taxed.
You also seem to misunderstand that there not two tax rates; there is only one. It is 23% tax inclusive or 29.87% tax exclusive. The bill specifies tax inclusive since that is the way income taxes are sopecified. You'd do well to research the bill and the FairTax website.
And you're making the completely unwarranted assumption that prices before the FairTax was applied would remain the same as they are now. That isn't the case at all. Most economists realize that some portion of business income taxes are embedded into prices as a hidden tax and that this will be removed when income taxes go away. Your belief in prices "skyrocketing" is either caused by your own lack of knowledge or by your wish to stampede others by scaremongering.
Then every single thread to FR about this, including this very one, is just chocked full of lie after lie, posted by the proponents of the FT?
And yet, and yet, looky looky...read your very own words in the second paragraph.
Where are the provisions, that you talk of, that would prevent the percent from being raised? And why can't that ever be changed? Has there EVER been a tax that hasn't been changed in some way or another?
Unlike you, I do understand business and taxes and know history. You just make unsubstanciated claims or excuses. And since others on your side keep saying that the FT will be either 23% or 30% on the end product, then according to you, they are wrong. Okay, fine...for all any of us knows, if and when this garbage thing gets put into practice, it could wind up being 50% or 27% or some number not posted yet.