> Robot sewing machines could make 'made in China' obsolete That could make a huge numbers of job in the US obsolete as well.
High level manufacturing could certainly be threatened by robotics, but labor in the US is a much smaller portion of costs when you're talking about jet engines or medical devices than sewing a shirt (eg if you're paying $80k per year for labor, you're not going to be making $7 toasters in the US at that rate, you're going to be making million dollar jet engines; and you can't get labor costs below around $22,500 total in a manufacturing environment in the US).
The US lost the garment industry because its labor couldn't compete on wages. The average garment worker in China isn't making anywhere near $7.25 per hour, which is the US Federal minimum wage. Legally the US literally can't compete on wages.