Pre democracy, there was an argument against the masses voting because they were unsound minds, unqualified to know what was best for a country.

Everybody has to vote otherwise where do you draw the line? At a certain level of education? That's no measure of intelligence, for example most educated US citizens seem to think Socialism is bad when it is almost a paragon set of rules in it's barest form.
Having decided that everybody should vote how to make the system work? How about each party sets out a clear set of policies in simple English, the policies should be reviewed by an independent body and anybody can call foul on any part of the policy so that it has to be reviewed. Then people are encouraged to vote for the party whose policies they most like and not on red/blue/green, best looking candidate, who your family has always voted for or some other such nonsense.