It is the beginning of the NFL playoffs so here is an idea to make it a little bit safer: Quarterbacks should wear a different color since there are different rules for tackling them. This is how they saved the goalies in Soccer.
Last year BC (Before Covid) I predicted that football would have at best another ten years before it became indefensible as a blood sport. Covid might move up that schedule. I like football and I think that sports generally are a net positive for the world in many ways but there are too many injuries in Football the way it is played today for it to survive intact.