For example the democrats believe in democracy while the republicans push for a republic setting, since the US republicans are like the galactic republic, does that mean democrats are like the sith empire? cus the empire isn't really a democracy when you think about it :S
also it was confusing in episode 1 phantom menace when the senator guy was like "we are a democracy, the people have decided" - so its like a huge loop whole in the story lol - is that why they say swtor is non cannon? or did the galactic republic turn to democracy between swtor and episode 1?