Producing 100% of American consumer goods domestically would be a logistical and economic nightmare, instantly making most consumer goods unaffordable for the average American and being literally impossible for many products.
"Because, let's be clear, it would be a logistical and economic nightmare to produce 100% of what Americans buy in this country in this country. It would, for example, among other things, mean that essentially every consumer good you could think of would instantly cost far too much for the average American to actually afford it. But it's also literally impossible for many of the products that we're currently consuming."