I have had this kind of experience (especially among the crowd from the suburbs). It really is a downer and people don't really want to talk about it, beyond smalltalk type stuff, then move on quickly. It can really be a bit socially isolating when you bring these kinds of things up, you feel like you're living on a different planet from these people.

I recall having a similar feeling at a wedding reception. Everyone was so happy and excited. I was stuck thinking about the possibility of a rapid collapse in the near future. I wanted to say "WAKE UP!" It was a rather gloom evening to say the least.