The next election will most certainly be determined by these ‘one-issue’ voters if they don’t wise up and look at the big picture. The main difference between the one-issue voters in both parties is that the democrats won’t chew off their own arm.
One-issue voters on the conservative side of the aisle is the so-called Christian coalition who make abortion their issue. Illegal immigration and border security represents another one-issue block. There are others but I don’t have the time.
The point is that no matter what a candidate may believe on this topic or that topic, the president does not rule like a king or a dictator. It’s the members of congress that make the laws. And for the one-issue voter to vote as though he were electing a king is just plain wrong, politically, and guarantees they remain in minority status.