It’s funny you say that, because the primary beneficiaries of capitalism have been exactly those workers over the past four decades. While not good for American workers, off-shoring and outsourcing have lifted over a billion people out of poverty since the 1980s.
China had the fastest growing middle class in the world, so much so, that as a buying market they’re absorbing the entire stock of many categories of high quality or luxury goods that are preferred by the middle class.
The Chinese worker making my phone may hate their job for similar or different reasons than the investment banker, both who famously have jumped from buildings due to work stress, both famously faces of capitalism. But, that Chinese worker is now able to provide for their family including their education and onward advancement in a way that wasn’t possible before.
Since the 1980s China has been speed running the Industrial Revolution, with massive cities forming of people who were almost entirely in rural areas previously in abject poverty and doing subsistence agriculture, all of whom now work jobs that have elevated them out of that poverty.
You can say a lot of truthful negative things about capitalism but pointing to manufacturing jobs in China is completely missing the thread.