This may strike you as being unscientific, but the reason Eric Cantor lost his seat in Virginia is that no one liked him. He was always a whiny presence on the Washington scene.
Of course, the fact that he may be replaced by an even more dangerous Tea-Party-type is certainly no cause for celebration. The fact is that people who live in Confederate sh*thole districts are not likely to vote for anyone who will do anything but attempt to govern by hijacking or obstructionism. We live in the Disunited States of America and will continue to do so for the foreseeable future.
You may recall the whole “Left Behind” Evangelical myth that, in the End Times, the saved are wafted to Paradise while everyone else has to suffer the various beasts of the Apocalypse while the saved are eating Corn Nuts and drinking Duff Beer while fluffing their wings and cheering on the Four Horsemen. I think that the people who vote for insufferable right-wing nutjobs have been “left behind” by science, the economy, technology, and everything associated with good sense. All they’re left with is Jesus and their guns.
God help the rest of us!