You have references but they don't back up that implication robots are being used in US factories.
There are a lot of things that have changed in US factories in the last 35 years but I don't think widespread use of robots is one of them. But I can't find references :-(
For the purpose of this discussion, any machine that automates or assists in a task is a robot. Electric screwdrivers and conveyor belts are robots, albeit unsophisticated ones.
There are a lot of things that have changed in US factories in the last 35 years but I don't think widespread use of robots is one of them. But I can't find references :-(