Inconvenient in the PC world but there's some truth to this. People getting angry and calling you racist says a lot about the current culture.
Japan does have a lot of smaller inventions and they are the best at turning a so-so idea into perfection.
Also, in reality their list of inventions is long. Lithium ion batteries were invented in Japan. So would you say Tesla is stealing Japanese technology when installing LiIon battery packs in cars?
Chinese inventions slowed a lot during communism and they have a completely fall-in-line-don't-stand-out culture which does not favor new ideas.
Sub-Saharan Africa has basically nothing, they didn't even have the wheel before the white man arrived, think about that.
I'm surprised as an American you claim Chinese are stealing ideas (they are) yet totally oblivious about US thefts of European inventions. Remember the times when UK protested against US pirating British books and US said to take a hike. Or when Aspirin was stolen from Germans.
In Europe the inventions do not exclusively come from Western Europe, North was also quite active...
Interesting how northern Africa always seems to be dismissed when talking about the contributions of Africa