The only problem I see here is will this unemployed population of the town be qualified for the job position in the Mining Plant?
Of course not. Even if people are genuinely qualified, Bitmain will only end up employing a small percentage of what they promised to employ. Bitmain is just in it for the money, they don't care about the locals there.
The only question is how friendly will the local government there be if Bitmain doesn't live up to what it was expected to do initially. Will they let Bitmain keep operating or will they interfere and still force them to employ more people.
It's one thing for Bitmain to employ cheap Chinese workers, but it's another thing when it concerns American workers demanding far higher wages. We'll see what happens, but it likely won't end well.