I'm painting with a broad brush :). The extremely negative and short-sighted attitude about Chinese knockoffs is (in my experience) most prevalent in 'western' countries: USA, Canada, UK, Western Europe. I have less contact with Eastern Europe, South America or Africa so I can't comment on their reactions.

Attitudes toward copying are very cultural. In China, it stems from pragmatism and a greater focus on the ends rather than the means (winning trumps winning well) whereas in the US--and West--winning is important, but so is "playing fair".