They're a bank dealing with money. Sure put money into an account. Who cares about money going in. But pulling it out you need to identify and if it doesn't match the teller has to confirm identity legally and professionally. Nothing in this story indicates its about race. To me it sounds more racist to throw out accusations of racism at random people doing their job because you fucked up and didn't validate your own ID. When your issued a passport they get you to check the information is correct for this reason. The bank has strict regulatory policies and internal rules all tellers are required to follow.

It's a legal obligation for the bank to escalate it. You can't just ask them, informing someone you suspect of an unusual transaction is specifically called out in anti-moneylaundering / anti-terrorist financing regulations.