In summary, grey aliens are just as fucked as humans treating humans worse than they do. Their civilization is evil because they have no control over the malicious members of their species, human civilization is more evil because the only thing stopping us from treating aliens the way humans treat humans is not having developed interstellar travel yet. Shadow people aliens are worse than us and grey aliens accompany them just as we would because we're just as fucked up as grey aliens are forming alliances with people more fucked than they are for fucked up reasons. Shadow people aliens are worse than demons in that they do and take everything by force without any romance, seduction or motive other than superpredatory maliciousness as their way of life, not because they are inherently evil but because they are inherently predatory and vicious. That's why SETI is beyond stupid. Contacting aliens like us makes contacting devils a better idea.
By evil I mean harmful, not the opposite of good. The opposite of good is harm. The golden rule is incorrect, some people like to fight and to be harmed while harming others. It's simple, do not harm others.