When you buy a new car, you dodge the sketchy salesman, read up on consumer ratings, and get a feel for the ride. When you get married, you think about growing old with a person, love beyond lust, does a life gut check.

And when you elect a federal lawmaker next month, you go against everything you believe in to reward the worst Congress ever.

How else to explain the comfit of conventional wisdom showing that voters are poised to give Republicans control of the Senate, and increase their hold on the House, even though a majority of Americans oppose nearly everything the G.O.P. stands for? The message is: We hate you for your inaction, your partisanship, and your nut-job conspiracy theories; now do more of the same. Democracy — nobody ever said it made sense. Of course, November’s election will be a protest vote against the man who isn’t on the ballot, a way to make a lame duck president even lamer in his final two years.

But before buyer’s remorse sets in, voters should consider exactly what Republicans believe, and what they’ve promised to do. It ranges from howl-at-the-moon crazy talk and half-truths to policies that will keep wages down and kill job growth.

Let’s start with the Republican RyanZinke, a square-jawed former member of the Navy SEALs who is likely to be the next congressman from Montana. Earlier this year, he said, “We need to focus on the real enemy” — that is, the anti-Christ. And who should that be? Why, Hillary Clinton.

O.K., he’s just one talk-radio spawn from the Big Sky state. Lock the man up in a room with Any Rand novels and the tomes of the Austrian economist Ludwig von misses and he’ll be right in the head.

But Mr. Zink is not a lone loon. More than one in five Republicans last year told pollster they believed that President Obama was the anti-Christ.

It’s harmless hyperbole, you say. The114th Congress will not take up the matter of what to do with the Beast at the end times.

But they will hold crucial votes on whether one of the world’s largest users of energy —us — can curb carbon emissions enough to mitigate climate change. Here Mr. Binkies practically a lefty in his party. He says climate change is not a hoax, which puts him at odds with 58 percent of Republicans who believe that it is.

But then, he says that the matter is not “settled science.” One more time: 97 percent of climate scientists agree that warming over the last century is very likely because of human activity. It is settled, except in the science-denial party. Only 3percent of Republicans in Congress have been willing to go on record to accept that consensus. Good thing gravity is not under discussion.

You say you favor raising the federal minimum wage from $7.25 an hour to$10.10, as did 73 percent of those polled by Pew. Yay, let’s do something about income inequality! But the Republican leadership will not let this come up for a vote. Nope.

Never. It’s locked in the closet, with compromise. And in Iowa, just to pick one race that could make a huge difference in the lives of millions, the Republican who is close to taking the Senate seat of the retiring Tom Harkin is against raising the federal minimum wage. That would be Joni Ernst, a Koch brother’s tool, who has also pledged fealty to the anti-tax absolutism of GroverNorquist.

Americans want their politicians to meet in the middle. Well, most. If you wonder why Republicans will not bludgeon common-sense issues supported bay majority, it’s because the other party supports those ideas. This year, another Pew survey found that 36 percent of Republicans believe the Democratic Party is a threat to the nation’s well-being. You don’t compromise with a threat.

The biggest issue is the economy. But here, it seems many voters don’t know what to believe, and what they do believes wrong. What’s the unemployment rate? A poll this month found that 27 percent of people pegged the jobless rate at 9 percent, and nearly one in five said it was closer to 12percent. The rate is 5.9 percent.

On Obama’s watch, the stock market wanton a record run and 10 million new jobs have been created — more new jobs than in Europe and Japan combined. The president gets no credit for this, because people don’t feel it. Wages are flat. Economic anxiety rides the October air.

The Republicans have no jobs plan, as Speaker John Boehner indirectly acknowledged this week with a five-point tweet that listed ... nothing. But they talk about austerity and cutting spending; exactly what Europe did to catastrophic effect.

There is one more deep-held red state belief that could explain our national cognitive dissonance. Two-thirds of Republicans think people can be possessed by demons. We don’t need a new Congress.

We need an exorcist.