That’s right robots don’t get paid and they don’t need health insurance.
However, when most jobs are done by robots, federal revenue from income taxes will greatly diminish and we will not be able to build and maintain a military to defend the country.
The options would be to tax human workers more or to tax productivity of robots.
Necessary taxes for the Feds should radically drop as the current drones are replaced by robots.
Robots are equipment—an extension of the programmers reach. Are you assuming robots shaped to mimic the human form given an artificial mental capacity? Is Gates ascribing human rights and responsibilities to a constructed item?