You're taking it to the extreme whereas a 10% cost basis of a physical good sold to consumers isn't really that far off. If Dewalt claims one of their tools is worth "$200", yet it regularly sells for $100 still with enough margin for domestic distribution, "free shipping", no fault returns, branding/engineering cost of their domestic employees, etc, how much do you think they actually pay the Chinese factory? That's going to be the number written on a cargo manifest even without any shenanigans.