OK mushroom, so IYO that was a poor example, but what about driving - lots of amputations occur in accidents there, so my point still stands.
We couldn't ban driving because it sometimes leads to amputations, ditto circumcision.
We couldn't ban gliding because it sometimes leads to amputations, ditto circumcision.
We couldn't ban skiing because it sometimes leads to amputations, ditto circumcision.
We couldn't ban cycle racing because it sometimes leads to amputations, ditto circumcision.
We couldn't ban trains because they sometimes leads to amputations, ditto circumcision.
.... and so on. You can't legislate against things going wrong.
Have I made my point clearer now ?