US biggest existential crisis is the fact that the opposition is always a monopoly. So either you have a massive win, or a party will block the other forever o

US biggest existential crisis is the fact that the opposition is always a monopoly. So either you have a massive win, or a party will block the other forever out of spite, nothing can be accomplished and no mistake can be fixed. With more opposition groups the situation would change for good ("You don't want to make a deal with me, I will ask the third and fourth parties. The first team doing a reasonable move gets the prize").