In my opinion, forcing everyone to standardize on Intel architecture chips is bad for an entirely different reason. However, since the industry is already broadly standardized on DDR RAM, I think we're not losing anything by pushing for "standard" RAM interfaces, even if it's just "some kind of standard socket for current JEDEC spec". It's sort of in a similar vein to the EU pushing for USB-C standardization on phones.
For motherboards, it ought to just be more future-proofed. Exactly how to incentivize that is not trivial, definitely not going to be figured out in a Hacker News comments section.
> And it will also result in worse computers that are necessarily slower and larger?
Slightly, which is exactly why it's never going to just magically happen on its own even if it would literally be better for everyone overall. But I don't really buy the idea that Apple can't make a competitive motherboard or computer if they're forced to support modular system RAM.
And personally, I'm not in favor of outlawing soldered RAM or embedded RAM or what have you, I'm in favor of disincentivizing not supporting expandable RAM on desktop and laptop computers. It doesn't have to be illegal, but it absolutely should be discouraged.
I am not, on the whole, more concerned about Apple's bottom line over concerns like ewaste and consumer rights. I have a sneaking suspicion they will do just fine, somehow.