First of all, unlike the military draft, players are in the NFL by their choice and the team that agrees to pay them. If they're afraid of injury, DON'T SIGN THE DANG CONTRACT. Football is by it's very nature a dangerous game...
All these lawsuits flying around have more potential to hurt the game LONG TERM than head injuries. With players already insured by the league, there should be a 'no fault' clause in all contracts to get rid of these lawsuits. I'd bet most players would have little problem with that...
To make it more complicated, it's evolving into more of an entertainment spectacle that a sport from the business side.
Pollard has good points; no one really knows where that line will ultimately be drawn between 'player safety' vs 'just enough violence to keep the fans interested enough to spend $$ on it'...
THe problem there is that the people who will ultimately make the decision on where that line is have no interest whatsoever in keeping the league in a functional, let alone enjoyable state. Trial lawyers only care about lining their own pockets. The rest of the world can burn for all they care.
Thirty years from now, if the league still exists, it will be watched only by women and girls. Instead of Broncos vs. Eagles we'll see Ponies vs. Parakeets.