> Severely undercutting manufacturing prices for decades, to the point that Western nations have lost the ability to manufacture many products.
Western countries have moved to products that have higher value added. China is largely industrial society, the developed world is post-industrial society.
> Devaluing the Yuan and opening trade agreements around the world to protect itself from US sanctions and tariffs
Indeed, the Renminbi has actually been overvalued for a few years now. China has been selling US Dollars and buying Renminbi in order to prop up the value of their currency. This actually hurts Chinese exporters, all else being equal, but allowing the RMB to fall would encourage capital flight.
Western countries have moved to products that have higher value added. China is largely industrial society, the developed world is post-industrial society.
> Devaluing the Yuan and opening trade agreements around the world to protect itself from US sanctions and tariffs
China has not been doing this for a long time.