I've seen this argument, but i never understand the people making this argument. China is called the factory of the world, and it is undeniable that a lot of chinese labor force works in manufacturing. So if jobs weren't lost due to outsourcing, then what are these industries and jobs doing in china? I think the standard response is that usa's manufacturing output has increased, but comparing 1970s manufacturing output to 2020 isn't at all fair. You need to consider the alternate world, where globalism wasn't this big a force, and most manufacturing stayed in usa. There would be even more manufacturing in USA, so globalism did lead to job loss.