If the system works, how is it that we had a hung parliament, then the parties chose between themselves how it panned out without any further input from the electorate?
This isn’t a democracy. The Queen has veto over laws concerning her and since she’s at least nominally in charge of the armed forces and the police and a lot of tax havens that doesn’t leave a whole lot that’s important for us to have the vote on.
If we want to change this situation through the ballot box, we can’t; her Majesty can simply veto our democratic decision.
Then we should remember how many times this country’s been successfully conquered. The Romans managed and we still have the top-down heirarchical societal structure they left us with. William the Conqueror took us over and we still live with decisions he made, like the monarch owns all the land (if you’re a freeholder, you only own title to the freehold, not the freehold itself. That belongs to her Maj, you remember, the one we never elected and can’t vote out of office). Then the Dutch bankers funded William of Orange to come over and get us all tied up in paying eternal debts to the banks, which has worked out very nicely for the banks but means much of our efforts don’t go towards furthering our own interests. And we put up with all of this. Greece had it easy.