Only as long as we continue to perpetuate the idea that the only parties that exist are Republicans and Democrats. Which is a stufftty thing to do.
the problem is that there's
effectively only two parties, and that's the natural end state of any single-winner plurality election system. people would rather strategically vote for the candidate that they feel has the best chance than hedge their bets on minor parties, and those minor parties aren't rewarded for the votes they're able to draw out. that's not to say third parties can't affect politics at all though, they can still bring up really good ideas that the major parties take on (e.g. how the tea party has pretty much integrated into the republican party), but they're at a real disadvantage when it comes to elections.
not to mention the fact that third parties have a lot harder time actually getting candidates onto the ballet nationwide.
also i'm kinda over bernie at this point. he's still the guy i'd prefer most, but he's a bit more economically left than i am, and i feel like he might be too far from moderate to be able to compromise when congress inevitably became a republican majority again (that seems to be the status quo anyway though i suppose). i'm down for hillary even though she's probably going to have trouble with rocky approval ratings. i'll probably live if Annoying Orange is elected, but i'd rather not have him in control of the military or at the head of diplomacy