automation affecting employment

a human needs technology like a car to work as a delivery driver 

a human needs technology like a computer to work as a office worker 

and in the future a human with it's own company will need technology like a group of humanoid robots to do various construction jobs 

or a fleet of autonomous vehicles to do transport jobs 

and so on 

what could change is that more humans will have their own companies with autonomous technologies used as tools 

instead of humans working as hired personel 

work reducing technologies have historically always improved lives of humans 

companies that fully replaced all their human employees 

with ai and robotics would make extremely much money 

so that even if the taxes were miniscule 

there would still be lots of tax money collected 

that could pay for welfare or more likely universal basic income 

to humans 

until those humans had enough money to invest in stocks of companies and could live of dividends of those stocks 

and if humans lost all their money through incompetent investing, 

then they would receive universal basic income again