Right to repair is a real issue that needs to be dealt with but if we consider some other points, when you do an unofficial screen or battery replacement, where

Right to repair is a real issue that needs to be dealt with but if we consider some other points, when you do an unofficial screen or battery replacement, where does that screen actually come from? I'm not aware of any companies manufacturing brand new iphone displays. So my only thought is they must be mostly from stolen phones and for batteries, also stolen and second hand batteries. When I have done my own battery replacements on android phones I have found that half the time the battery I got off ebay is already stuffed probably because it was in someones phone for 2 years already. We need to consider how much use letting users replace their own screens is compared to how much use having users not get their phone stolen is. Perhaps there could be a system where the part ids are tied to an apple id and the original id has to authorize a transfer but then all the displays on ebay would still not work because they are stolen.