No surprises there . . . bottom line: cheaper labor/higher profit margin.

The two bicycles we currently own/ride are fully built in the USA (including the tubing). Most components are made outside of US, except for Chris King hubs and headset on tandem and CK headset and Topolino wheels on single bike.
The bikes are custom built carbon fiber (Zona brand), tandem and single.
Known the builder personally, for decades, and watched him build the bikes in his one-man shop.