Why can’t the airport have a service where instead of handing over your stuff they stick it in a flat rate overnight box to the home address from your ticket? If you don’t want to pay or the item can’t be shipped (loaded gun) it goes to TSA. But a congressional medal of honor penknife or grandma’s scissors from 1938.
If they can’t do it right in line then a kiosk you can do a self check before getting in line.
I don’t know how recent the information on the website is, but at least one such service seems to still exist.. I remember seeing this kind of thing at a self-serve kiosk in Denver International’s TSA line.