Time to throw in the towel and 'lead'?

In my last post, I suggested that Paul Ryan's extremist, intellectually dishonest long-range budget plan is a sideshow -- that if there's any chance at all of a long-range tax/budget agreement, it rests with attempts by Chambliss, Coburn and perhaps Crapo to convince fellow Republicans that tax reform will have to increase federal revenues.

Now, though, Ezra Klein relays some intelligence that suggests that Ryan's plan may kill that admittedly distant hope:

Two days ago, I predicted that Ryan’s budget would sell a lot of Democrats on the Simpson-Bowles plan. But James Pethokoukis says it’s also doing the reverse. “I hear what GOP support there was for Obama/Bowles/Simpson debt panel plan is collapsing thanks to Ryan Plan,” he tweets. If that’s true, then Ryan, by yoking Republicans to a radical and polarizing proposal that stands no chance of passage, may have set the deficit-reduction effort a very long way back.