Electoral College with First Past The Post electors. Hundreds of millions of american votes are dumpstered for the presidential election. So a significant portion of protest voters in deep red OR deep blue states aren't impacting the outcome. Only swing states decide the outcome and even then it is only a few districts within those states. And so the electoral outcome for the presidency gets reduced to the most salient wedge issues in those communities.
It just so happens some things are not so localized an issue. So the idea (or one of them) is to demonstrate whether there is a meaningful voting bloc to be had here that deserves to be listened to, or can continue to be ignored.