Welcome to the forum. These are good points that you bring out maybe we are in the crapper maybe the system as we know it is changing (peek oil and all). But being a Jehovah's Witness is not some magic shield that's going to keep you safe from these things. Jesus Christ is the only one that can keep you safe no matter what religion you attest to be he (Jesus) is going to be looking at your heart and not your affiliation. Remember, many will call on him saying LORD LORD and he will not know them.
If and when the end of this system as we know it comes, will we be there, who knows but Jesus so why worry, be happy live in the moment enjoy the things we were given and live. Love people and show it and maybe we will be spared.