The problem we have in the UK is that multiparty politics has arrived and the existing First Past the Post system has the same problems and more. For example, it has a habit of handing power to a party without a majority of votes (randomly, when it doesn't produce coalitions).
If you take the view that majority rule and minority rights is necessary for democracy, a majority government without a majority of votes is a problem. If you don't take that view, then you would probably want a different non-proportional voting system, but we've already rejected AV (instant runoff voting) in a referendum.
If you take the view that majority rule and minority rights is necessary for democracy, a majority government without a majority of votes is a problem. If you don't take that view, then you would probably want a different non-proportional voting system, but we've already rejected AV (instant runoff voting) in a referendum.