What do you want? Flag football? 2 hand touch? Everyone simply playing Madden? Football is a collision sport. It has always been a collision sport. Everyone who plays know the risks from Pop Warner all the way up to the NFL. No one puts a gun to anyone's head to play. Should we do away with all contact sports? No more boxing, MMA, rugby, take checking out of hockey? You want to kill the sport, remove or diminish the contact. Mind you, I'm not ripping you for your view but it's not like someone woke up yesterday and said, "Wow, they really hit in this league".
IMO, and this is a similar idea I had for hockey concerning stick incidents, they need to make the equipment a little less protective. This would make the players a little more conscientious with their hitting and maybe they'll focus more on actually tackling. I know it sounds nuts but there is logic to my idea.