eSIM simply gives the carrier and Apple another opportunity to be a gatekeeper. They determine when and if you ought to transfer eSIMs. And anybody who really travels knows physical SIM rates are almost always cheaper globally.
The worst part is, removing the SIM tray has zero benefit for consumers. It saves Apple money but doesn't save any space on the logic board. Apple simply inserted a plastic spacer on U.S. model iPhone 14. For iPhone 15, Apple just spread out the components to take up the extra space.
A perfect summary - great post and 100% accurate