I can tell you from professional experience, Built in Japan, China, Mexico, USA, etc is not necessarily an indication of quality. It can be an indication of a company's Quality policy, requirements, and efficiency of Quality management.
Every time we opened a new mfg facility, whether it was in a different country or not, there was a learning curve for the new operators/engineers. In our case, finished goods were tested/inspected 100% until the failure rate met our criteria. So while there was a significant ramp in output volume of a new site, there was no difference in quality. (I use past tense here only because I am recently retired.)
So if a company moves production to a new country and quality suffers, it is the fault of the Quality Mgmt of that company, not an indication of shoddy workmanship in that country.