Yeah. I had to go through a vetting process to be appointed officially joyless. It involved someone calling me that when I criticized the Gambo treats.
As usual it's a sci-fi movie with no sense of scale. A million soldiers is enough to conquer maybe a small country on Earth. In the Star Wars universe, assuming their galaxy is about the size of the Milky Way and they have the same approximate rate of planet formation, that's enough clones for a single security guard to cover roughly about 100,000 planets.