Also, our 2 huge parties aren't dissimilar to the coalitions of parties you see in other democracies. Over time the boundary lines between our 2 parties shifts as those coalitions are formed, disbanded, reformed, etc.
Yeah but in those countries the parties actually get to rep themselves in the legislature. You can’t literally masquerade as a member of another party here unless you want people to think you’re a mole or a turncoat.