Democracies defend themselves if someone tries to circumvent the election process, but rule is with consent of the governed. The legitimacy is that government w

Democracies defend themselves if someone tries to circumvent the election process, but rule is with consent of the governed. The legitimacy is that government won the election. A monarch doesn't have any legitimacy aside power. This power is established with violence. No democracy is perfect but most are better than competing ideas by significant margins.