were all the other traits supposed to be indicative of a fundamentalist Christian, or were they just being listed for no apparent reason
The traits listed are not related to the presumption of christianity. The traits suggest he's at least a proactive sort of person. The assumption, well, it's based mostly on all the people I used to know, and that could very easily turn out to be very wrong.
I have no
real problems with this guy, and if he's a christian then fine, really. I know a lot of them and they don't bother me. Having slept on it the red flags are all due to this guy just out of nowhere wanting to be my friend. We hadn't talked really at all before this. We sat next to each other, he asked me about homework here and there, that was it. I didn't even know his name at the point he was asking to me to hang out. It feels like an unnatural leap from classmate straight to buddy, without any small talk or getting-to-know-you or anything.
I suspect most of it has to do with my inability to speak to strangers, actually. My lack of trust informs my behavior. I'm put on edge when people I know cozy up to me. I imagine that when I cozy up to people I don't know they have the same reaction of alarm, and I'm generally a conflict-averse person. There's also a long story as to how I became wary of alpha male types specifically, but I don't really have a good reason (I suppose it could be a good reason, depending on your perspective, but I don't think it is). I have an understandable reason, but not a good one. I don't let it inform my opinions of people past a certain point, if I did I would have very few of the friends I do, but it always dominates first impressions.
I think that the most plausible thing that will happen, given my past experiences and my knowledge of guys of my age, is that hanging out with him and his roommates will involve drinking and possibly watching a horror movie. I enjoy neither of these things, by and large, and I enjoy them less together. But if the guy asks me to hang out I'm not going to say no, as I am incapable of coming up with not-lame excuses, and my friends have been making an effort to get me out of my comfort zone and I suppose this is jumping into the deep end, so to speak, but it probably won't turn out half as bad as I fear at might. I'm not entirely sure what it is I'm fearing here!