"thats 125,000 men who should be in Tamil fighting for what they believe."
First of all, Tamil's not a place.
Second of all, the point is that they don't "believe" in the cause at all. They are in just as much danger from the Tamil militants as they are from the Sri Lankan government. They want NOTHING to do with the war, they simply want it to be over so that they can go home.
I've mentioned that before, I'm not sure why you've found it so difficult to grasp.