well, signs of the end of the world are only called 'wishful thinking' if you're having a really bad day.

But in essence you're right.
It's part of a mental phenomenon known as apophenia. IT's a form of pattern recognition software hardwired in our brains. The most common expression of that is to see faces or animals in the clouds. There's no actual face there, but our brain organizes the actual image in a way that recognizes the pattern of a face where there isn't one. That's an important biological survival tool, but it shows up in odd places. So we think at some point about what clues the end of the world might look like and lo and behold we see those patterns in our world, and yes - pretty much every generation does it.
It's compounded by another phenomenon known as Baader-Meinhof. Thats the phenomenon whereby you suddenly see things with far greater frequency even tho there's no actual change in the rate at which you're exposed. A classic example is when you buy a car and then suddenly you notice that same type of car everywhere you drive. You never really noticed them before but now you see them regularly. It's as if suddenly they've appeared out of nowhere. Of course the number of cars of that type hasn't changed, just your perception.
So once someone starts "seeing" the signs of the end of the world, or signs of religious significance etc, they tend to start seeing them everywhere. When you combine the two effects everything looks like a sign of the end of the world and you can twist at least one biblical passage to fit any sign you see.
My dad summed this up with a saying: "If all you think about is hammers, pretty soon everything looks like a nail." And it applies to MANY things in life and many types of people. To a cop everyone's a suspect, etc etc etc.