That Rod Dreher is a horrible person has already been established, so I'll just comment on the "co-ed dorm" thing. I lived in co-ed (as in, rooms alternating by gender) dorms my first couple of years in college and from my experience those bits of the dorm system were much more civilized than the rest. Young men and women actually had to interact regularly in a living situation and not be isolated from each other. In less co-ed dorms (options were single sex by wing, floor, or entire building), I think a lot less mutual acceptance and understanding existed.
Three cheers for co-ed dorms.