Well, to be honest, the title is highly misleading.

Sure, they pledged to refuse to participate in the creation of such database, but that's just one of the things stated in the full pledge. I would emphasize more on the following parts of the pledge:

    * to scale back existing datasets with unnecessary racial, ethnic, and national origin data.
    * to implement security and privacy best practices, in particular, for end-to-end encryption to be the default wherever possible.
    * If we cannot stop these practices, we will exercise our rights and responsibilities to speak out publicly and engage in responsible whistleblowing without endangering users.