One thing I think is going on is that a lot of people in the western world have been raised to expect Armageddon sometime during their lifetime, and because they feel like they are on the right side they are attempting to accelerate that Armageddon because they think that happiness and Paradise are just on the other side of it.
It's like being told as soon as you finish this chore you're going to get a tasty treat. If you really want the treat you're going to work harder and faster to get the chore done sooner, right?
There's only one line in the Bible and I don't remember where it is that cautions people against attempting to accelerate the end of times because they don't really know what it's actually going to be like and they're only leading themselves to their own destruction but just like everything else in the Bible, because every single word is supposed to be important, that warning has just slipped through the cultural cracks.