We'll you'll be happy then! :)
Because this is commonly believed but actually totally untrue. There's an entire book about it, "Culture War? The Myth of a Polarized America" by Morris P. Fiorina.
The upshot is basically that if you ask people binary yes/no questions (or binary left/right votes), the population appears divided, bimodal. But whenever you give a sliding scale in surveys, it becomes abundantly clear that the population is centrist -- unimodal. Even for gun control and abortion, the most hot-button issues.