Couple of ideas:
1) Why not on the kickoff only, the players where flags and play flag football. That would eliminate all hitting.
2) On the kickoff everyone runs backwards except the kick returner and the kicker. Or if you remember or played crab football/soccer in elementary school; everyone has to go down the field on all fours.
3) If your a WR you are not allowed to catch the ball if your about to get blasted.
4) If your a RB and about to get crushed because your linemen didn't block, you have to do a QB slide.
5) If your a defensive player and your about to knock the out of the QB, right before the hit you stop and throw a Red Cross flag up in the air which will stop the play.
If you don't like them then you are meatheads who don't want football to resemble some other game that nobody currently plays and you didn't grow up with.