> Not to mention that historically there have been many excellent leaders who rules for decades There are probably more historical examples of not-so-excellent

> Not to mention that historically there have been many excellent leaders who rules for decades There are probably more historical examples of not-so-excellent (incompetent, evil, tyrannical, etc) leaders ruling for decades than excellent ones. The problem with tyranny is that the only way out is revolution. You may have an excellent dictator for decades, but then he dies and his son/crony/not-so-excellent replacement arrives for the next N decades... At least with Trump there are a variety of strategies besides bloodshed to get rid of him if people decide they don't like him.