the usual approach, when men with spades were replaced by diggers; or men with teaspoons were replaced by men with spades, is that you take the profits of the company making the diggers, and you tax the wages of the digger makers, and you may tax the dividends paid to the owners of the digger company. A small proportion of the tax might go to paying enough to keep the unemployed in survivable poverty, or retaining some of them.
I don't see that putting people out of work by using robots is different from putting people out of work by using steam looms. Older members may recall that we used to have factories making typewriters, and people servicing and repairing them. We used to have watch repairers and wagon makers. We used to have typesetters and newspaper presses. We used to have coal miners, and, before them, coppicers, peat-diggers and charcoal-burners.
If the robot making companies, and the company owners, were allowed to dodge tax in some way, that would be a different problem.
It's quite likely that notch is not serious in his suggestion.