6500 jobs is a big number in human scale. That's more people that you know.
But that's 0.05% of the manufacturing jobs in the US alone. 0.05% of the manufacturing power of the US fitted with the latest tech match the output of the whole Lithium-ion battery sector.
Obviously that's 1 specific field and product and you can't extrapolate to everything else, but really you can't help but think that even maintaining current employment in manufacturing will require staggering increase in manufacturing output of the US. If Trump is even a bit serious about trying (and has the congress support for it), it would require a colossal disruption of the market either through regulation, taxation, investment, ...