This take only works if you tunnel-vision yourself to only looking at the United States. It's all too easy to say "we believe X and you believe Y; who's to say which is right!? From our point of view, you're the one in the bubble!" But if you step back and look at the American political spectrum from a global and historical perspective, it's abundantly clear that it's the conservative side that is in a bubble; nearly even a cult. The rest of us would love to have two rational political parties to pick from. Few people are ideologically beholden to the Democratic Party directly, it's just literally our only option.