While concern about where a particular product is made may not be in itself racists, it does show either internal prejudice or concern with other's prejudices.
I don't doubt for a minute I could find mistreatment of certain peoples, or some unfair practices in every country on this earth. I'm sure I've purchased items of all sorts from manufacturers and countries that engage in harms to some people. One could measure one country against another in making this choice which totally ignores the individuals and/or single manufacturer in equation. For instance, I could purchase product from a country I prefer, yet from individual or manufacturer that mistreats people. I could also purchase from less preferred country from individual or manufacturer that treats people well.
Do people seriously believe all citizens/companies from any individual country are all uniformerly bad or good? Are those so focused on audio equipment country of origin as concerned about all their other purchases? I presume every single individual on this planet has purchased products from entities that have caused harms to others. How does one draw the line when these products so ubiquitous?