I think that's kind of the nature of abuse: we are made to think we are inferior or we deserve it or that we'll suffer consequences for telling, we won't be believed, we'll be shamed etc. It's not your personal failing that you "protect" abusers by not speaking out. That fear of speaking up is part of the abuse.

And to be fair to those of us who have not spoken up (or did not for a while) or have not reported abuse to the authorities: look what happens when people speak up. Some infinitesimally tiny proportion of rapists do any jail time and victims are blamed and shamed, rampant sexual abuse has gone on in the church forever and the abusers have been continually protected and the victims continually silenced, women are most likely to be murdered as they are leaving an abusive relationship etc. I say this not to be depressing but to point out that there are powerful disincentives to speaking out.

So I hope your therapy is helping you cope with the trauma and shame of abuse and helping you understand that the shame belongs to the abuser. I hope you are not being judged for having a normal self-preservation response to abuse or being told that you are somehow at fault for not reporting what happened.

I'm all for speaking out and getting justice but to pretend that our system doesn't work because victims don't speak out is really, really unfair.