I find it insulting because implying everybody who's made a different choice from yours isn't thinking critically is insulting. So write that down.

[ "Sorry if you're offended" is never a good defense. This dude's a gem. ]

I don't care if it's not my planet, and my getting home is literally life-or-death important. I'm not going to leave these people in a lurch if I have the ability to help, which I apparently do. There's a lot to be skeptical of here, but... Well. If they're bending the truth about our purpose here or whatever, that's on them. I can only run with my own convictions until we're better informed. And who's to say what will and won't get us home at this point?

How's sitting around being smarter than everybody else working out for you? I notice you're still here.