Is it ok to copy a W5 head and make it better or are we just mad at Speedmaster

We have acquired a problem of lack of manufacturing capacity in the US from years of buying the cheapest. In the meantime China and others have built up their manufacturing capacity. My son looked for two years to find a USA manufacturer of a product of his design. He has acquired trademarks and patents that were very expensive for a startup company. In the end he had to go to China for manufacturing and had a long fight to get the quality he demanded but he finally got it. Now he fears tariffs will upset the apple cart, but in the long haul we have to get manufacturing capacity back in the states. It’s just not an easy problem to cure and will not be quick. Quality and cheap at the same time is not an option.