"Eventually all of us will have more free time as we can create businesses with a fraction of the capital and sell them to other people in poorer countries who will ahve an expanding middle class like China and soon Africa hopefully"
You've managed to come to the correct realization by taking the wrong path.
The people who will make money in the coming decades will be (already are, actually) the ones who own the robots. The advantage is that the good robots won't go out and become competitors for your business like the human workers of old and they never need a raise to keep them. See, if you had a business of 20 people, you'll have two that are smart enough to run their own business. You need them, of course, to oversee the other 18 already - which is why they're your foremen. One of those two, and possibly both, are going to want more money for that. And they're good enough that if you don't give it to them, they'll go start a competing business, probably taking your best workers with them with the lure of a salary premium.
With robots, this won't happen. You can control them all so you need fewer foremen. And even if you have someone "good" working for you, they can't lure your robots away with the lure of an extra day off a month or $1.50 more on their hourly rate. And they can't compete with your business as an individual because they can't actually *do* the work with anywhere near the efficiency of the robots.
Now, as long as either you have minimal competition or everyone in your industry goes along with a wink and a nod about "value", you can continue to charge what you used to for the work, but pay less in operating costs thanks to the robots. And you and all your people will still work 40 nominal hours a week because, let's face it, if you don't someone else will get ahead of you. And if they get ahead they'll drive down prices until somebody folds, and they'll pick up all their robots and keep going until there are as few players as the government will allow. Overhead per robot is down, prices drives out competitors, and then prices rebound. And half a dozen executives retire to private islands, a hundred managers stay on at 50 hours a week, and 1000 people go without any job at all.
You're scenario only works when there are poor countries to which you can sell your stuff, but eventually the tables will be leveled and you'll have ultra-rich robot owners, an upper crust of people with jobs, and a shitload of humans with nothing to do. Then we'll be truly and utterly fucked.