The health-care summit on Thursday will garner a huge amount of media attention — and its effect on the health-care debate will be negligible to nonexistent. It is simple political theater, a transparent public-relations game. No one believes anything important will be done, any serious negotiations will take place, any concessions will be given, any significant compromises struck. All it will do is place a debate we’ve been engaged in for the better part of a year on another stage.

The important news from this week has to do not with political “summits” but political substance — and the Obama administration’s stunning decision to double down on health care. I say stunning because ObamaCare is doing to the Democratic party what a wrecking ball does to a condemned building.

ObamaCare is, for one thing, hugely unpopular. David Brooks reports that if you average the last 10 polls, 38 percent of voters support the reform plans and 53 percent oppose. Obama’s reform is more unpopular than Bill Clinton’s was as it died, Brooks points out. And of course the intensity of opposition to the plan is far more than the intensity of support. Health care also set the context for Democratic losses in New Jersey, in Virginia, and in Massachusetts. Yet, according to press reports, “after initially reeling from the surprise election of Republican Scott Brown to the Senate in Massachusetts, Obama’s chief political strategists came to believe that voters would punish Democrats more severely in this year’s elections for failing to try [to pass health care legislation], they said.”

Liberals like E.J. Dionne Jr. and Ezra Klein of the Washington Post argue that if Obama fails to pass health-care reform, his presidency will be crippled — but if he passes reform, it will be salvaged. “This week will determine the shape of American politics for the next three years,” Dionne wrote on Monday. “No, that’s not one of those journalistic exaggerations intended to catch your attention. … It’s an accurate description of the stakes at the health care summit President Obama has called for Thursday. The issue is whether the summit proves to be the turning point in a political year that, at the moment, is moving decisively in the Republicans’ direction. If the summit fails to shake things up and does not lead to the passage of a comprehensive health care bill, Democrats and Obama are in for a miserable time for the rest of his term.”

This strikes me as perfectly wrong. After a year of intense debate, the public has reacted to ObamaCare the way the human body reacts to food poisoning. It is rejecting it, utterly and completely. For Obama and the White House to convince themselves to ram through legislation that is, if anything, worse than the original House and Senate bills is an act of madness.

I rather doubt it will succeed. For one thing, there are now at least three people who voted for the House version of the bill who will not vote for a reconciliation bill (the late John Murtha, Bart Stupak, and Joseph Cao). For another, the Democrats plan is more unpopular now than it was when it passed in the House last year (by a vote of 220-215). We are also in an election year, when the Democrats are desperate to turn attention from health care to jobs. And finally, we live in a post–Scott Brown election world. Democrats have seen that ObamaCare is political hemlock. It is a cup Democrats would rather have pass from their lips.

No one is arguing that not passing Obama’s signature domestic initiative would reflect well on the president. A failure of this magnitude will undoubtedly damage him. But in this instance, with the White House having acted so ineptly, failing to pass ObamaCare is the best of bad options. Obstinacy on behalf of a bad and unpopular idea is a road to political ruin.

In redoubling his efforts to pass health-care legislation, Obama will be rejected — not simply by Republicans and the public but also, I suspect, by members of his own party. This in turn will further weaken his political standing. He will have looked obsessively out of touch, selfish, and narcissistic. But in the highly unlikely event that Obama, Speaker Nancy Pelosi, and Majority Leader Harry Reid succeed in passing health-care legislation through the reconciliation process — if Democrats in the House are foolish enough to hitch their hopes to this liberal troika — there will be an even more fearsome political price to pay.

Some Democrats may believe things can’t possibly get worse, so they may as well pass ObamaCare. They are wrong. As one of my least favorite political philosophers, Mao Zedong, said, “It’s always darkest before it’s totally black.”