Our economy would have to be truly ridiculous if having robots do 40% of the work was a bad thing. I mean, that means we have almost twice as many people available to do the stuff that couldn’t get automated! The most obvious solution would just be for everyone to work a little bit more than half as hard as they used to.
If you chop incomes in half, for example, Europe's various aging welfare states would quickly implode due to lack of tax revenue. Every advanced welfare state is built on tax revenue continuing to pour in. Many of the affluent nations in Europe are already struggling with demographics v tax revenue v welfare state needs, a rapid drop in income and it'd all go down quickly.
