A) 25x? I'd have to be an idiot to believe that. The ratio isn't that high between the USA and China.

B) When I looked this up the ratio between Brazil and China ranges between 2x and 3.5x. (China doesn't have a single national minimum.)

C) On the more important comparison, PPP per capita GDP the ratio is less than 2x.

It seems like 60% tariffs are still significant. We're all acquainted with the nearly universal practice of doing most manufacture in a cheap nation and then doing only the final assembly (or sometimes disassembly) in the importing nation. If this isn't what you're seeing you haven't been paying attention.