first of all if you've read any of the halo books you would know that humans didn't just stand around and watch their planets get glasses either, and did you see how that worked out? Jedi may have the force, the didact had basically the same thing and master chief killed him. "Spartan laser". also the covenant have plasma weapons. the sentinels have lasers that can destroy planets. Spartans were trained from the age of 6 then genetically modified to be stronger, smarter and faster, plus the enhancements of the mjolnir armor. how are clones better than that? what's so special about yoda? and despite everything you've said you still haven't addressed the flood, covenant, forerunners, sentinels or precursors.