While deAcc/Pause is the majoritarian view
The article you cited here is paywalled, so I can’t respond to it specifically, but I don’t think the widespread opposition to new datacenters is evidence that the majority of people actually want to pause AI development or are worried about x-risk. A lot of people are opposed to data centers not because they’re worried about AI progress, but because they’re worried about land use, water consumption and electricity prices. If you ask an average person who’s protesting the datacenters (especially in rural states where these projects are being planned and fought over), they won’t tell you they’re worried about an AI apocalypse, they’ll give you some version of “they’re gonna take all the farmland and turn it into datacenters”. At least, that has been my experience, and I live in a rural state with a few controversial datacenter projects being fought over as we speak.
Proposing that sorting by personality similarity would make pleasant, cohesive families is making an assumption about human nature, which I wish like hell were true, but it’s not: It assumes that if only everyone were matched with the right people that “clicked” with their personality, they’d all find their role in happy family units and we’d all live happily ever after. And that’s probably true for many or even most people, people who could be miserable and a drag on everyone if they were surrounded by the wrong partners, but turn into happy and contributing family members when they’re placed with the right ones.
But I believe the unfortunate reality is that society is full of people who are just plain shitty to be around. No matter the context, no matter who you placed them with, they’d make life miserable for everyone around them. Pick a reason—endless lying, arguing, complaining, hypochondria, paranoia, toxic jealousy, plenty of people have some or all of those traits that make one a bad family member to almost anyone. I’m drawing from personal experience here, I can’t cite exact personality traits or evidence to back up my claim, but I think it’s a pretty safe bet to say high neuroticism is a factor. Unless you’re incredibly fortunate, you probably know people in your own extended family whose company you wouldn’t wish on your worst enemy. I think that you could have the most advanced sorting AI in the world to try to find the perfect matches for many people and the family units they were in would still be worse off for their presence.
One advantage—at least in terms of seeing that even the most unpleasant and burdensome members of society are cared for—of the “luck-of-the-draw” family system is that these people are placed within a support system of others who are socially obligated towards them. Again, your experience may vary but I personally know a good handful of people that would probably be living under a bridge without a friend in the world if their family members didn’t feel obligated to keep taking them in and giving them support despite their abrasive personality and long track record of terrible behavior.
Some of this you could chalk up to mental illness, and your idea might be a little more feasible if we took that out of the equation with better AI-driven medicine and institutions, but unless you’re going to add “Being a general asshole” to the DSM, I think that leaves a lot of people who wouldn’t be a good fit anywhere.