Because democracies aren’t guaranteed to survive if they don’t remain democratic, and this has played out many times in history. E.g. Germany was a parliamentar

Because democracies aren’t guaranteed to survive if they don’t remain democratic, and this has played out many times in history. E.g. Germany was a parliamentary democracy before it fell to the Third Reich. There is zero guarantee that just because we have a democracy today means that it will be there forever.