There are pros and cons to either approach. I've been wondering recently if voluntary voting in the US is partially responsible for the tribal political atmosphere? As I understand it, one of the big challenges both major parties face in the US is how to motivate their voting bases to actually turn up to vote at all. And as social media has shown us, there's nothing more engaging and motivating than outrage.

So both sides of US politics, and their surrogates in the media, are incentivised to stir up outrage against their opponent, leading to a more divided country in the long run.