No vote is better than an ill-informed / non-informed vote.
Ya know, I'm not so sure about that. The whole premise of democracy is that we are, collectively, smarter than any of us individually. Somehow, the average of the guesses comes out as closer to the truth than any of the guesses. Uninformed voters on one side of the issue cancel out uninformed voters on the other side of the issue.
There's a lot of reason to be dubious about that, but to be frank, the vast majority of voters are very uninformed about practically every issue. Any significant topic requires years or decades of study to be really expert on. And most voters will go in with nothing more than they've read in the newspaper, or worse, on TV. Take any topic you actually know in detail; do you think that any reporter has ever understood it? Here on Slashdot we regularly complain about how science and technology are misrepresented and misunderstood. Do you really think that reporting on energy issues, the economy, or foreign affairs is any better?
I'm always glad for people to want to know more, but practically everybody goes into the voting booth with a massive case of Dunning-Kruger syndrome, convinced that they know the topic far better than they actually do. The whole point of democracy is to try to take that into account. Usually, we're actually voting for people to represent us, and they often know it a bit better than we do (or at least, they have advisers who do), but in the end we're really just hoping that the representative on the side of the truth will have slightly more followers than the representative who has it wrong. Democracy is designed to expose a slight bias towards reality, even if few of the individuals involved can actually justify that bias.
I'd love to live in a meritocracy where only the best experts are making decisions... but who's going to pick those experts? I'd be happy if it were me, but I bet you wouldn't be. Democracy is the closest thing I've ever seen to a fair way to pick. And if so, it only works because everybody gets to take their best guess. I suspect that the ones who know enough to know that they don't know very much are better qualified to take their guess than those who don't even know that they don't know.
Especially when you've got a news media which gets its best viewership by telling them how smart they are and that all of the smart people agree with them. They're the most dangerous voters of them all, and they vote in droves. And I can't think of any fair way to keep them out of the polls. So everybody might as well go out and vote.