Hitler didn't make a mistake in the way he took power. He defended the country from the communists who were trying to take over. His Nazi party was a better government than liberal egalitarian globalism aka international leftist communism. He did a much better job than the Monarchy of Russia did in defending itself from the Bolsheviks and we all know how that turned out. Or the Chinese who defended themselves from Mao. Also, Caesar took power from a corrupt Republic. Lincoln suspended parts of the constitution when needed.

Sometimes drastic actions are in fact needed.

Though liberty is established by law, we must be vigilant, for liberty to enslave us is always present under that very liberty. Our Constitution speaks of the "general welfare of the people." Under that phrase all sorts of excesses can be employed by lusting tyrants to make us bondsmen. - Marcus Tullius Cicero

That is what is going on today and simply standing idly by won't solve anything.