In 2011 the UK held a referendum which gave the electorate he chance to scrap the " first past the post " system and replace it with an alternative. A large majority of voters 68% voted to retain the " first past the post " system. If that's not democracy I don't know what is!
Of course UK voters understand the shortcomings of their system. Yes, it's possible for a party with less than 50% of the votes cast to form a government. On the other hand governments can do their job without the messy " horse trading " that coalitions often require.