At some point, US companies need to follow the lead of consumers who willingly pay more for products made in the United States. If there were no demand for products made as a result of stolen IP, the incentive to pirate IP would (in theory) abate.
Say you're in the market for piece of custom automation equipment to, say, install lenses in cameras. You can get it from a US company for $200,000 or a Chinese company for $125,000. On looking deeper, you realize that the machines are essentially identical, and the US company has been in this market for 5 years while the Chinese operation started 18 months ago.
Who gets the contract?