I hadn't heard that saying.

Many people seek being outraged. Many people seek to have awareness of truth. Many people seek getting help for problems. These are not mutually exclusive.

Just because someone fakes an incident of racism doesn't mean racism isn't still commonplace.

In various forms, with various levels of harm, and with various levels of evidence available.

(Example of low evidence: a paper trail isn't left when a black person doesn't get a job for "culture fit" gut feel reasons.)

Also, faked evidence can be done for a variety of reasons, including by someone who intends for the faking to be discovered, with the goal of discrediting the position that the fake initially seemed to support.

(Famous alleged example, in second paragraph: https://en.wikipedia.org/wiki/Killian_documents_controversy#... )