I get your general sentiment. I'm just not sure why everyone keeps using the iPhone example. China's value-add part in the iPhone building process is about 1%. Having iPhone built with China's manufacturing efficiency is a lot more about Apple's bottom line (as demonstrated by its ability to lobby Trump to delay the tariffs until after the holiday sales) than China.
It isn't about the iPhone though, but rather it is used as a generic example of the type of product built in China that is exported internationally. Being involved in that sector, there have been cracks forming ever since the first round of tariffs were implemented. None of my Chinese vendors are particularly busy, and I'm getting more cold messages than ever from vendors in China. My vendors outside of China are all talking about how they are growing. I was visiting a manufacturer in SEA at the end of May and they had at least 3 or 4 containers full of machines they had just received to open up a new section of factory.