Since the government is going to have to accept that there is a limit to revenue, it might as well be today's level of revenue.
Why?
Why not?
The basic choice is between biting the bullet and doing it now, and, putting it off to a latter date.
Sure, it is theoretically possible to either raise, or cut taxes, from their current level and freeze them forever at that level, but, that's not how humans operate. In practise, the decision to raise taxes will only result in a debate later in which the tax-raisers will claim the underlying facts are the same as they were in 2012.
I really don't think the argument will use 2012 as its touchstone.
The fact that you think taxes can or should be frozen forever at any given level says an awful lot about you, Bob.
The fact that you are incredulous about the notion of the electorate saying, "Enough, we are choosing not to pay higher taxes!," just means you are one of the people whom has to be politically defeated, else taxes will rise to the point that people can't pay them any more.
One of those two limits is going to be reached. It might as well be the electorate choosing not to pay higher taxes.
Well, the taxes aren't raised right now, as much than I know.