We hear a lot about single-issue voters. Pollsters tell us there are a lot of them. Pundits tell us the way to win an election is to find ways to appeal to several groups of them and to cobble together a winning coalition. It’s an easier strategy than trying to explain complex issues and trying to find ways to deal with them. It takes less time and less energy. It doesn’t work every time, of course, but it might work often enough to encourage other people to try it.
There are problems with all of this. It may help you to win an election, but it won’t help you to govern after you’ve been elected. It’ll make governing even harder. And it’ll make compromise almost impossible. If you’re cynical enough, that may not matter to you. If all of your focus is on a single issue you may not pay attention to the damage being done in other areas. If you have enough contempt for other people you may feel as if the end, your end, justified the means.