This very much depends on the ratio of retirees to workers. Also automation may not play out so well for Chinese production, as it's more sensible for other na

This very much depends on the ratio of retirees to workers. Also automation may not play out so well for Chinese production, as it's more sensible for other nations to bring automated manufacturing onshore for a combination of reasons including reduced transport, supply chain certainty, stabler internal economics. Onshoring automated manufacturing could still use a significant amount of international remote labour, but the hosting country would capture more of the taxation from the manufacturing, which you mention as going to pay for the Chinese retirees.