You are making a valid statement here. It is very important to keep fit and be prepared physically to face nature’s obstacles. Yet there has to be a moderation in fitness preparation and conditioning. Gyms out there appeal to masses with pictures of O% fat muscle defined bodies. Is this a way? I don’t think so. So what that you can bench press 300 lbs 10 times when I can bench press 150 lbs 50 times. So what that somebody can run 2 miles in 12 minutes but can't walk more that 1 hour at the time? Everything you do is connected. In survival situation you be walking, running, swimming, threading water, climbing, etc, etc… That’s the activities you should focus upon. Walk a lot… Bike… Get in shape with activities that you can use. But also you can be the fittest person on the planet yet without knowledge how to do something you wouldn't get very far. I think that survival is a combination of physical fitness, stamina, mental toughness and knowledge how to do/use/prepare things.
Matt