> If a shovel manufacturer was notified numerous times that their shovel was being used for murder and they had the capability to disable using the shovel for murder while retaining all legitimate uses wouldn’t people question why they didn’t do it?

This is impossible-nobody can possibly block all illegitimate uses without also blocking some legitimate ones as collateral damage. Any moderation process (whether automated or human) inevitably has a non-zero false positive rate.

Now, you can argue that some misuse is so harmful, that the cost of false positives is worth it - but that’s a different claim.