Incredible video! I've been in tech for 20 years but never really bothered to dive in to the process of making RAM. This is eye-opening and makes me appreciate the sophistication of the tech involved in making those ram-sticks.
"The biggest things in life have been achieved by people who, at the start, we would have judged crazy. And yet if they had not had these crazy ideas the world would have been more stupid." - Arsène Wenger
I've owned several Nokia phones in the early 2000s. It was dead simple to replace a battery. My 70 year old aunt who is a tailor by trade knew how to pop out the back, and insert a new battery. There's absolutely no reason a screen replacement can be made as simple. The Fairphone series has already achieved this for screen-replacements (albeit with a bit more difficulty than a simple battery replacement.)
Even if the majority of people are unable to do these part-replacements themselves, it is still a massive improvement to make them easy to perform. The reduction in expertise required to perform these replacements would significantly reduce the cost of these operations while simultaneously reducing e-waste.