Go beyond your feed. It's
your feed. Of course it's more likely to be representative of ideas that you agree with. Checking live tweets from the trending page is much more accurate of people's opinions. Twitter and much of the web as a whole, was overwhelmingly pro-Sanders.
Is this representative of the American people though? Sure isn't. You can argue it rubbed the average non-vocal viewer the wrong way. I'd argue otherwise of course.
Not at all. In all likelyhood, Clinton will take the nom, but it's still a race whether people are comfortable with that reality or not. Superdelegates will not go against the people's will or it'll be a shit-show.
True delegate count is what matters.
^ If you look at this and see a race that's "over", I don't know what'll convince you to look beyond GAF rhetoric.