Sounds like that should be part of your due diligence if availability of parts is important to you. It is very true that a local manufacturer is more likely to have parts more readily available, but w the global supply chain now in force, that's no guarantee. I've gotten good service and bad in terms of parts availability from US and offshore companies.
Why I prefer gear that is made domestically
I find you have a better chance of getting parts and service if you buy a domestic product. Sure some domestic companies go out of business but nothing is full proof. If I need a part for my VPI turntable or ARC electronics I can usually get them within a week. When I had Dynaudio speakers I blew out a driver and had to wait 3 months to get one from Denmark. Since I didn't have another speaker at the time it made it inconvenient for me. No knock on Dynaudio. I really like their speakers. But if I had domestically made speaker I most likely could of got a part within a couple of weeks.