Ban the bump.
Its that simple.
Sick of watching TV talking heads crying out "we don't want that kind of hit in the game" and "the optics are bad". Then in the next episode saying "you can't ban the bump entirely ... its part of the game".
You can't expect a professional athlete to be able to distinguish the "optics" in the middle of competition.
If you don't want an action just ban it totally.
So they can continue to let off Victorian "good blokes"