@polotek A huge part of white supremacy's conditioning of white people specifically is designed to stunt any sense of agency.
For everyone else, agency is actually constrained and stifled by material oppression; but for white people, agency is something we are taught we do not have, or have only by proxy (e.g. via supporting the "correct" authority figures). That keeps most of the white population from doing anything.
The few of us who try very, very quickly face expulsion from white society, which is enough to scare even more into inaction, or at least dump us into material circumstances of limited efficacy.