What are you a luddite? Sure things will need to change as all jobs are automated and we move to a purely research oriented society, but that will happen slowly. If you watch shows like How It's Made you'll notice most everything is automated already, but you need someone to maintain the machines until they can fix themselves. At that point people will need to make better ones until they can also do that role. Then they kill us. Simple economics.
I was following you and largely agreeing with you until you said "Then they kill us." That's where you lost me.
First of all I don't think job creation will ever be purely research oriented.
Secondly, I debunked the hypothetical solution of decreasing the population, or "then they kill us" as you put it, in my OP. It doesn't solve the problem at all. Its not only very unlikely because it contradicts the long standing trend of increasing population, but it doesn't actually solve the problem because unemployment in an automated maximum economy society is proportional to population.
Gainful employment is the only possible solution, and if established buisnesses don't provide enough of it for the masses, then the masses will create it for themselves, probably in the form of new buisnesses that offer something those with money want to pay for and cannot get for a cheaper price. Given that buisnesses tend to employ as few people as possible and given governments don't seem strong enough anymore to put socialist pressure on big buisnesses, I predict enough small workforce buisnesses will arise to gainfully employ enough of the population.