Dictatorships are the norm in human history and the only viable option for governing large disparate populations of low intelligence .
Some are benevolent, some are brutal.
Some even start as Republics.
A dictatorship in the USA that neutralized domestic communism, sexual deviants, smashed the tyranny of the Federal Judiciary and destroyed the political class in DC would be a great thing.
In fact, there is probably no other way for these goals to be accomplished.
No. With respect, no, it would not. Just no, absolutely not.
Cromwell started out that way. So did Napoleon. It's a short-cut solution and it always ends up worse than the problems it intended to solve.