Question: Why are there no good or bad people, and good or bad is is in the eye of the beholder?
Answer: It is true, everything is “in the eye of the beholder” since our perception of reality is inherently introverted, subjective.
Moreover since this perception is also fully egocentric, self-serving and self-justifying, “good vs bad” is evaluated according to our own egocentric calculations.
If we want to know what objective reality is, how others behave, fare in “real life”, then first of all we would need to acquire a completely selfless and thus transparent, objective perception, viewpoint.
Then we would be able to see that everything and everybody is only “good”, since everything and everybody is part of Nature’s absolutely impeccable, perfect system!