[@ASTA]I was going to say hello it's been awhile but then oh no, this. 

The majors can't just demolish a minor in a single attack. Majors were the first to ascend to space, create warships and FTL. A lot of that tech was given to all sentient species capable of intelligence like their own due to a galactic counsil (which was created to ensure everyone has a chance at lidelife, continuation, and not ruled or controlled by any Major) ruling. Minors are still slightly new to all of this, and not extremely up to speed