Compared with 8 bit home computers appliance nature, that wouldn't be a big problem if we had repair shops all over the place, which could nonetheless take over replacing/upgrading soldered items.

I do agree having back user upgradable ram, disk and GPUs on laptops would be much better alternatives.

Today there are also plenty of cheap models that support memory expansion and have an additional slot for an SSD. The only exception is the ability to replace the processor, which is extremely rare. So you should rather ask yourself why you, as a consumer, chose a non-upgradable model.