Myth #1: The US Is A Two Party System, Not A Coalition System
Many democracies run, with varying degrees of formality, on a coalition system. Many parties via for seats in a legislative chamber, representing many distinct interests. Generally, there is something that can only be done with a strict majority, often things like passing bills or electing a Prime Minister. Since the interest groups are so fragmented, for a given bill, many of the groups may have weak or even no opinions about it; for instance, a labor party may have no strong opinions either way about a gun control bill. (I'm not saying that everybody who calls themselves "labor" parties, and I think there are a lot of them, won't have an opinion, just that they may not.)