Futurology

However that profit that productivity should be shared by the masses. Not funneled to these fucking dragons who hoard wealth at our expense.

This gets complicated too. Billionaires are not literally sitting on top of a giant pile of a billion dollars' worth of goods and services that nobody else is allowed to make use of. Most of their wealth is in the form of shares of ownership of things that would be chugging along much the same as if the ownership was split up among lots and lots of less-wealthy people. It doesn't generally make a huge difference to Amazon that it is owned in large part by Jeff Bezos rather than divided up among a million people.

That's not to say that "trickle down" theory is correct - quite to the contrary, it's been proven to be bunk repeatedly. But the problem of concentration of wealth among a few hands is IMO a separate issue from the issue of increasing economic efficiency. You can still get taxi monopolies whether the taxis are operated by human drivers or by robots.

Ideally what should happen if cabbies get replaced by cheaper robotaxis is that the price of taxi rides should go down, which would benefit society as a whole by letting everyday people ride taxis more or use the money they save on taxi rides for other things. The cabbies who lose their jobs suffer in the short term, sure, but that's counterbalanced by the benefit that all the non-cabbies would see. The key to making sure that this happens is to ensure that competition remains a thing - if there are a bunch of independent taxi companies vying for customers then they're more likely to pass those savings along rather than simply pocketing the excess profit.