Democracy is the way to ensure that you are governed by the type of government you deserve.
That might be true in theory. In practice, I see at least two issues with that statement:
1) you don't get what you deserve, but what the majority deserves. It's a big difference.
2) it assumes that the democracy you are talking about is functional, which in turn assumes that everyone has access to reliable information (a prerequisite to making informed decisions). One might argue that is technically the case, but in practice it isn't: when shown a fact and a lie, people acting in good faith disagree on which is which. Having access to reliable information would mean these people agree on which is which.
There's also the fact that often enough democracy ends up rewarding bad behaviour from politicians, such as populism, corruption, making decisions that do not satisfy the needs of the many, or more simply and perhaps more commonly than anything else, lying. Which in turn reinforces the issue of access to reliable information.