Boeing is finding plenty of machinists in China, not better ones but cheaper ones. One of the areas more well known shops I used to work at has a shop in China now. I've seen the pics of Boeing assemblies being built there in other plants. Not for the shop I used to work at but for direct shipment to Boeing.

I think this is a foolish time to strike. They're canceling hundreds of flights, shutting down airports, the economy is probably going to tank and you think Boeing has a good enough outlook to provide more than they are?