Wait, I got that all backwards. The world is more democratic today than it was in the 1920s, 1930s, 1940s, 1950s, 1960s, 1970s, 1980s or 1990s. Facebook is a recent convenient scapegoat for the same problems humanity has had with organizing fair systems of government for thousands of years, and it's a particularly intellectually lazy scapegoat at that.
But since we’re here and I can’t resist, I agree with you that statements like “x is destroying democracy” are meaningless hyperbole. Social media has a role in influencing the outcome of the democratic process, sure, but to say it is ERASING DEMOCRACY is ridiculous. It doesn’t mean anything. We still vote, and those votes still matter.
My nostalgia for the internet of yore and the affects of social media on democracy are pretty much divorced ideas anyway, I really did just mean for my original comment to be a funnysad observation