It makes no sense to talk about safety when multiple drivers are all driving aggressively, trying to beat the others and taking risks in doing so. It’s how the game is played.
There is nothing that can be done, or should be done, to make them “safer.”
If you want absolute safety, go home and watch TV - but then you could be killed by a meteorite hitting your house.
Newman . who is an engineer bitched enough to nascar that A Newman bar was put on cars..and it probably saved his life.