if you believe the bible is the story/history of God
if yes, then they are the fallen angels who took women for sex and taught witchcraft spells war and weapons….. so no they don't help but like a good demoncrat they act like they want to and like a vampire need your consent or invite
If no, then they are ET's and have powers greater than ours and whether or not good / evil is answered by their non illumination of truth in a world built on lies