“Why have we not seen a backlash by the American people or for that matter people all over the world against Chinese products sold?”
Because Americans talk a bigger game than they play. Remember all that conjecture in Spring and early Summer about boycotting Chinese products? Americans squawk loudly, but eventually stay in their comfortable habits.
Republican Free Traitors™ must have to have a come to Jesus moment and admit any possible economic advantage gained over the decades, decades of US worker misery, of offshoring to countries like China and so called free trade was completely wiped out in 2020.