Don't you think that's sort of arrogant, assuming that everyone who does not think EXACTLY like you must automatically be serving these dark, evil powers..?
Personally, I look at people's actions. I look at their personalities, their words, their deeds, and who they really are. You can easily tell what animates people that way! It only takes a tiny bit of empathy, is all. And in my opinion, if someone is a good, caring, loving person, who treats their fellow human beings, (and also other creatures), with kindness, that obviously means they are serving the forces of light, and NOT the forces of darkness! Which I would think automatically excludes them from being "puppets used by Satan", yes..?
You can be a creature of the light, or of God, or of Love, or whatever word you want to use for how you personally experience the highest thing there is, without necessarily seeing it within a spiritual or religious framework! If you do the light's bidding, you are a child of the light! Even if you might not be conscious of what it is, and you just instinctually do what's good, and what's loving, because that's what feels right to you.. I know most atheists would say you can be good without God. And in a sense, I agree. I agree that you can easily be good without BELIEVING in a god of any kind! But... I think ultimately, all goodness is derived from the same place! And that ultimately, all people that are sincerely kind and loving, are in touch with that higher thing! Just that they call it by different names, and perceive it in different ways, and some people feel no need to call it anything in specific.. Because I guess, to them, Love just IS, and that's enough! :)
I know lots of amazingly kind and wonderful atheists, in my own life. Like for instance, I would dare you to meet my dad, and then come away from it thinking he's a puppet used by Satan! My dad has never believed in a god of any kind. He was raised irreligious, and has been an agnostic atheist for pretty much his entire life, I think. But he has always been an incredibly kind, and open, and loving, and accepting person! He is very wise, and reflected, and a great listener! He's the sort of person who will apologize, at his own initiative, whenever he feels like he has wronged someone. He's the sort of person who can change his mind, and reconsider his previously held position, whenever new information comes in. He is humble, and thoughtful, and sensitive, and caring. He always sincerely wants the best for other people, and tries to make them feel happy and at ease, whenever they're around him. He was always a great parent! Not a perfect one, but he still always did the best he could, even when things started spinning out of control, and getting pretty damn hard! (Like they very much did during my teens, for reasons I don't really feel like getting into right now...) As for the God thing: he has never been on any sort of anti-theistic vendetta. He is very accepting of people who do believe! He just so happens not to believe, himself. But he's very happy that I've found my current sense of spirituality, because he too can tell what an overwhelmingly positive difference it has made in my life! So he very much approves of it, even if he cannot personally relate to it.
There you go. If that sounds at all Satanic to you, methinks you seriously need some kind of brain implant, or maybe five... Because I mean REALLY?! :-S As a matter of fact, I think there are lots of Christians who are nowhere NEAR as spiritually developed as certain atheists! Who help perpetuate darkness and hatred, instead of love and light, and as it says in the Bible, by their fruits you shall know them... Although of course there are also a number of light-filled Christians, and darkness-filled atheists! But.. you should really try to see people for who they are and what they do, on an individual level! Instead of generalizing, and focusing on labels and status, instead of recognizing what's really moving in people's hearts! Isn't what you're doing, and being unable to see that, basically the very definition of what it means to be a Pharisee?