Well,since they want to harness the metroids' power and spread the radioactive material of phazon throughout the universe, I'd say their evil.But metroid aren't that nice themeselves, lol.I hate in the games how they always suck the crap out of you lol.
Hha. I don't think their evil. They just mind their own business and the Galactic Federation has to butt in and get in their business, thats why there are so many disputes between Samus and the space pirates, because she has no choice other than to work for the Galactic Federation. So, basically, the space pirates are NOT EVIL