But moving out of the bureaucracy, the tax is more detrimental at a macroeconomic level. Like Donald Trump’s proposed Mexican Wall tax, Bill Gates’ robot tax doesn’t take into account its real payers. Sure, businesses would be responsible for collecting the robot tax, but the unfortunate reality is that consumers would feel the end-run burden. Why is this? Well, business owners are seldom content with seeing their profits decline over a tax, so naturally, they raise the prices of their products to make up the difference. This increase would result in higher prices and fewer products produced (versus a world with the robots but without the tax), effectively negating part of the efficiency gained in the first place.
You completely ignore the decrease in the cost of a product or service when an AI/robot is providing/making it instead of people. If a hambuger at McDonalds costs $0.50 with only bots in the supply chain, the customer isn’t going to mind having to pay $1, instead of the $3.99 they pay now.