Pro chainsaws only have a few parts if any made in China.Assembled in America using foreign materials I have seems stamped on many things. Or made in America but they make one piece in the us. Most basic thing like hardware and circuit boards ectra are made in china. Detroit is a ghost town for a reason
You do what you can.
Also realise that a reshoring is ongoing post covid.
Regardless I am not going to run some piece of crap from the 60's where it is an adventure to keep it running and the performance is trash. My time is very valuable and I have alot better things to do than fart around with old junk made a decade or more before I was born.
With that said I would have no problem running a saw long term. I had a MS260 for 20 years. Only got rid of it when I upgraded to a 400C. But a ms260 is still in production and while a typical turd Stihl of that design era, it isn't a relic from the 60's.