This is a normal response to existential fear(s). Religion plays a role for some in allying such. This may be good for some, but really does little more than provide a drug for most. Very fundamentalist religions, (i.e. like JW), are very black and white when it comes to things, (such as world events), and as such provide a powerful catch-all drug, (they social equivalent of heroin), for explaining them. In the case of JWs, this would be their Armageddon and Paradise doctrines. When one leaves such an extreme belief system, it is very common to experience withdrawal, and respond to negative world events with existentialism and with a certain amount of fear.
As others have pointed out, when the bigger picture is considered, (all known human history), today is a much safer and happier time to live in on a world wide scale, than any other time in human history.
Hint: Reading a lot will help.
d4g