When I was growing up in St.Albans in the 50's, a friend of my father ran a radio & tv shop near us. He had been a victim of just such hospitality & made a point of refusing to sell or repair anything made in Japan.
My uncle also had a radio and tv shop, but in Chichester, before and after the war. Although he didn't go the Far East, a lot of his friends did, and as a result, he too had the same policy towards Japanese products. I think one of the reasons he sold the business in the early 1970s was that he would have had to sell Japanese products to remain competitive, and could not bring himself to do so.