> ...we apparently have a do not hire list that goes across company lines for even positions like bank tellers? There was no visible public outrage against any company that refused to hire former Wells Fargo employees for example

For bank tellers, I believe this is tracked via the federal agency FINRA, through AWC submittals. For the Wells Fargo employees, you likely are thinking of the brokers who were ordered by Wells Fargo management to fraudulently open accounts. Allegedly, many of these brokers then found out later after they were terminated from Wells Fargo that the bank marked their termination on a U5 form in a manner that all but ejects them from the financial services industry, forever [1]. In both of these cases, they are via mandatory regulatory notifications, and not like the Japanese cases discussed here where it sounds more informal.

[1] https://www.nytimes.com/2016/11/04/business/dealbook/wells-f...