Over the next few weeks, Republicans will try to cut discretionary spending to 2008 levels and tell their constituents they are boldly reducing the size of government. That is a mirage. Anybody who doesn’t take on entitlement spending is an enabler of big government. The supposedly rabid Republican freshmen are actually big government conservatives. They will cut programs that do measurable good while doing little to solve our long-range fiscal crisis.

Meanwhile, the Obama administration theoretically opposes runaway debt while it operationally expands it. The president is unwilling to ask for shared sacrifice if the Republicans won’t ask with him. Fine. But he hasn’t even used his pulpit to prepare the ground. He announces unserious cuts with lavish fanfare.

Since most of the budget is untouchable, the budget ax will fall on every section of the discretionary budget. It will fall on the just and unjust alike, regardless of merit.

The implication is this: If people who care about this or that domestic program fight alone, hoping that their own program will be spared, then they will all perish alone. If they have any chance of continuing their work, they will have to band together and fight their common enemy, the inexorable growth of entitlement spending.

The foreign aid people, the scientific research people, the education people, the antipoverty people and many others have to form a humane alliance. They have to go on offense. They have to embrace plans to slow the growth of Medicare, to reform Social Security and to reform the tax code to foster growth and produce more revenue.

Specifically, they have to get behind an effort now being hatched by a group of courageous senators: Saxby Chambliss, Mark Warner, Tom Coburn, Dick Durbin, Mike Crapo and Kent Conrad. These public heroes have been leading an effort to write up the Simpson-Bowles deficit commission report as legislation to serve as the beginning for a serious effort to get our house in order. They’ve been meeting with 20 to 40 of their colleagues to push this along. It’s not always the most famous senators that are involved in this effort. It’s the midranking and junior ones who are willing to risk political ire to save the republic.

They need a popular movement mobilized behind them. They need an activist alliance so that party leaders and the White House can see a politically viable way forward.

It’s not only about debt; it’s about freedom. It’s about whether we get to make budget choices or whether we have our lives dictated by the inexorable growth of programs beyond our control.