>But, if society doesn't find a way to retrain(invest in) those people that were replaced we lose all the potential they had to offer.

Since this article is specifically about amazon and FC employees, I think it's relevant to point out they have a program to do just that. Career Choice pre-pays up to $12k in tuition towards degrees/certificates for an in-demand trade/field, and up to 95% reimbursement on books: https://www.amazon.com/p/feature/fsp92a2bhozr3wj