The idea is to make more privileged segments of society more aware of the injustices that have occurred for generations, and continue to occur to day, that have hurt minorities and other underserved populations in very damaging ways. There is a very real legacy of slavery, Jim Crow, civil rights abuses, "soft" racism, disinvestment in communities of color that has hurt of lot of people in ways you or I cannot imagine.
I think you can understand and accept that the suffering is real. I never really needed convincing of it, but the George Floyd protests and other events made me really start to think about it. Personally, neither you nor I, nor any "average" citizen living today bears any real individual guilt for this. But the point is that these communities need our help in ways that go far beyond words of empathy or expressions of guilt. We need to do better, because it will make our country better.
I'm a type of person who looks for "engineering" type solutions to complex problems, so when I think about the effects of racism and underserving minorities, I think in terms of policy ideas around economic development, public education, public health and social services, policing and crime prevention, criminal justice reform, etc. Most of the other stuff is window-dressing to me.