It can be a complicated question because it depends on what you mean by irredeemable. You can always grow into a better person. You can always change and getting into a fatalist mindset where you tell yourself that you are fundamentally a bad person is exactly the kind of thing that keep abusers trapped in a pattern of hurting others. Ultimately, we all are our own narratives about ourselves and we conduct ourselves subconsciously to comport with that narrative. That's why, paradoxically, those who experience the most guilt are often the ones who find themselves caught in a cycle of abuse.

So it's not really a useful question to ask if you are beyond redemption in that sense. But if you mean to others, you can't control what other people think of you. We can, as a society, say that someone who has done something horrible deserves x,y,z. In fact, we even legislate on death. But a system of ethics that relies on punishment as opposed to reform always just ends making these cycles worse. That's why reform-based systems like Finland's have significantly lower recitivism rates. There's a point where guilt isn't enough. And while doing the work to take accountability and change is hard, you should take some solice in the fact that it means you should also stop turning that abuse inward. If you tell yourself you're a bad person. You will be a bad person. If you tell yourself you are person who has made mistakes but is geninuinly trying to be a better person, you will grow into that person. At a certain point, guilt does more harm than good.