What is HAPPENING to the game?

When I first started watch the NFL in the 70's, the hits were nasty and plentiful, concussions were left untreated and players with knee injuries usually had to retire. I am GLAD they now treat concussions to attempt to protect the players and that medical science has advanced to the point that torn knee ligaments can usually be repaired. But I miss hitting. Basically every line of defense has morphed into the size of the next one up since the 70's. Jack Lambert was a nasty linebacker who played at like 210 pounds...as a MIDDLE LINEBACKER. Safeties are around that size in today's NFL. The Browns picked up Paul Kruger from Baltimore in free agency to play outside linebacker...Kruger weighs 270! In the 70's that was standard defensive lineman size. Joe "Turkey" Jones, famous defensive end for the Browns, played at 250 pounds. Back in the day, it was the rare player on either line that tipped the scales at more than 300 pounds. Now EVERY offensive line in the league AVERAGES that or more. Playing weighs of 340 to 350 are common place. All this added size has been complimented by even more speed. 4.4 forty yard dash times used to be the fastest you would see. Now some players run 4.2's. All this added girth and enhanced speed does result in more violent collisions. The powers that be however appear to want to turn the game we love into two-hand touch. Basically if you breath on the quarterback they will throw the yellow flag. DON'T hit them in the head, DON'T hit them in the lower leg, DON'T hit them on the follow through of attempting a pass! The defense has no chance. If the defender launching himself to hit a receiver or ball-carrier and the offensive player ADJUSTS his body and you hit him in the head...penalty on YOU. I don't know HOW the NFL thinks these guys can go full tilt and then magically chance their trajectory in mid-air. Two plays as examples... Quinton Groves flies through the air to tackle Detroit quarterback Matthew Stafford late in the 4th quarter of a close game. Stafford released the ball AFTER Groves launched, Groves hits him and spreads his arms to not drive him into the ground. He actually put both palms on the ground on either side of Stafford...and got a roughing the passer penalty that kept the drive alive. Tashaun Gipson hits Green Bay tight end JerMichael Finley HARD...with his SHOULDER PAD. Finley ducks down INTO the hit and ends up motionless on the field. Finley ended up needing neck surgery and I wish him all the best, but GIPSON got penalized and did NOTHING wrong at all. The game is violent and people get hurt, they always have and they always will. UNLESS the league insists on going to even more ridiculous rule changes in the name of protection. Why not go seven on seven? Fire ALL defensive lineman, the NFL could start an American Sumo League for them I guess. Or put the quarterbacks in red jerseys and declare them off limits...the Super Bowl would be So exciting if the final score was 121-97 wouldn't it? Maybe...but I wouldn't be watching. I would be watching old NFL films of the game I used to love more than anything. GO BROWNS!