Not true.
For instance, Cuba had elections throughout Fidel Castro's rule. They have the parliamentary system so he didn't personally stand for popular vote, but the elected parliamentarians always voted him in again and again.
Going further back, Hitler was elected.
If you look into this, dictators are almost always elected, over and over with 80+ percent of the vote.
Are you equivalencing elections in Nazi Germany & Communist Cuba with US elections? Then you have just made yourself illogical.
In case you do not understand, only elections in democracies count. Cuba, Nazi Germany, Saddam’s Iraq & USSR were not democracies.