"We Slaughtered Plenty of Jedi": Star Wars Confirms the Smartest Part of Palpatine's Order 66 Endgame

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Emperor Palpatine's Order 66 slaughtered nearly all the Jedi, but that wasn't even close to the smartest part of his plan, & Star Wars confirms it.

Palpatine's real mastery in executing Order 66 wasn't the act of slaughtering Jedi, but rather making the Jedi the villains and presenting himself as the hero.
Palpatine ensured that the galaxy would never be without a new villain by secretly creating or fanning the flames of the Rebel Alliance, giving the citizens of the Empire something to unite against.
Unlike the Nihil, who only celebrated their victory and didn't plan beyond it, Palpatine strategically laid the groundwork for a smooth takeover after defeating the Jedi and a way to maintain his power.