I don't think so. Even if you just get shipments for the rare earth materials that aren't present in first-world American countries, Apple would need to do the same supply chain audits all the way from shipment to mining, and they'd still be accused of using slave labor since apparently these audits don't work and using China at all introduces slave labor into your supply chain.

For now it still makes sense to do last-leg manufacturing in China since moving to the US has no benefits from a PR standpoint (due to the reasons above) and has huge negatives with needing to import the raw materials instead of just shipping the final product from China -> Alaska -> Continental US customers.