The real problem I think is the hostility towards repair, glue everywhere, no spare parts, etc.
I argue that easier they make for user to swap batteries themselves, higher the demand for the batteries will be, thus lower their price.
> The needed mechanism and the protective shell the replaceable battery needs definitely takes up space
This is true
> The real problem I think is the hostility towards repair, glue everywhere, no spare parts, etc.
I think when a manufacturer isn't designing to allow a regular customer (the owner) to be able to replace the battery themselves, using glue and restricting spare parts is a natural consequence of financial realities: Most people are not going to take a $500 phone that has been used a few years to a shop that will need to charge $100+ in just labor to swap out a battery. So there's no incentive to have a bunch of spare batteries.
I'm a huge fan of user replaceable batteries because in addition of obvious benefits, you can also just remove the battery and power it simply off USB-C when running something heavy on the phone for extended periods of time. A battery used in that scenario wouldn't just overheat itself but stop the phone from cooling off too.