alt Hacker NewsRoomba made some of the first robotic vacuum cleaners and they were based in the US.
Nowadays, they are just more expensive and inferior to the Roborock ones though. But thanks to the wonder of protectionism soon the customer won't be able to pick the better product.
What's "better" for the individual is not necessarily better for the society.
Also I think a better policy than blocking Chinese imports (which is probably not sustainable anyway) would be to require that the software be audited and comply with regulations. Same rules and regulations should apply to robots from all countries.