Dude you're off your tree. We are building fighters bodies, stronger, faster, more explosive every day. If you can't see how it would be a bad idea to all of a sudden throw on 4 oz gloves and have at it, then there is really no point in speaking with you on the issue.

Boxing isn't MMA, with a combination of various techniques and less rounds and time spent. We try to hurt the other opponent, largely by causing them brain damage by consistantly attacking their head. And succeeding fairly well without the help of less protection.