the flaw in your reasoning i think is that there will be zero-sum fight to have the limited number of companies in your country so that you can tax those companies and support the massive number of unemployed people. there will be a race to the bottom in the automation regulation that you describe because companies will just move if they are not allowed to lower costs through more automation... thus i think the result is that some countries will have very high employment rates because all the high-skilled, unautomatable jobs are located there (e.g. the US) and some countries (e.g. spain?) will have really high unemployment... this will lead to extreme tensions internationally followed by god knows what..