People generally only elect what they find to be the least detestable of the faux-representatives that their party strategists and financial backers put forth.

It's possible for harmful but popular policy to go forward with no one but your average constituent to blame, but when every option is a different set of false promises and failures to execute, and "the discourse" is driven mostly by dollar-driven propagandists, it's hard to place the blame for dysfunctional government on voters generally.