I don't think Gaeta's making the right choice. I think he thinks he's making the right choice, though. And I don't think he's at all evil.
His motivations aren't purely regarding the Cylons. As he says. "The world is frakked. It's upside down, and someone has to turn it rightside up." He may think the Cylons are the wrong direction, but they aren't the source of the problem.
Hrm. Racist? I don't think so. I think he believes the Cylons as a people are not a compatible ally for mankind, and that they're untrustworthy, deceitful, and mechanistically driven to achieve objectives. From his experiences, that's a justifiable position.
He clearly wasn't a racist when he fell for Sweet Eight, after all. If anything, he's learned the lesson that she was trying to teach him: in warfare you can't afford to be naive. You have to recognize and strike at your enemy. Probably a bad lesson, probably not what it will take to keep humanity going, but from his perspective...
He's certainly damaged (like everyone else), and I don't agree with his actions, but I have the benefit of being an audience member, rather than someone grappling with these problems
in situ. I think what he's doing makes sense to him and a great many other people.
I mean, think about it. The leadership
utterly failed. Threw away lives, ships, and civil liberties in the name of the hunt for Earth -- and that was a mirage. And now they want to turn to the Cylons in order to keep the status quo. A little creepy.
And then we get this:
"They found the tylium ship. Do you care?"
"Mm-mm."
"Neither do I."
Adorable, yes. But damn, these people should not be in charge of the entire human race at this moment.
So I can very much sympathize with his decisions.
Just rewatched the episode, by the way, and loved it (which I did not the first time.) Literary, thoughtful, and slow-paced. I'm definitely ready for some action, though.