There's a bunch of thoughts here, let me try to break it down.
It is, although the process is not generally fast or easy.
A common experience.
This is often a task done in psychotherapy, where you pull out the emotions and untangle the threads so that the bad memories of the past are easier to live with. Journaling and meditation help as well. But IRL you wouldn't be able to do that against someone's will, and the process is not fast.
With a lot of work and reframing, you can make it so that the bad experiences of your past, wile still painful, don't hurt as much and aren't so crippling. That said, there is no real world technology that can just reach in and flip a switch so that you like what you previously hated. On the other hand, a bad actor or some trauma responses can make people like strange things. Maybe that abusive person made you feel alive in other ways, maybe you internalized the bad traits while projecting good ones onto the abuser. Maybe a cult leader used their significant charisma to make you feel like the most important person on earth - while they're looking at you - making you excuse or forget all their other behaviors. Maybe the subconscious drug high they administered while within their presence caused you to become literally addicted to their presence?
Not in a matter of minutes, not easily, speaking strictly real world. That's like trying to download a physics textbook into your brain: it can be studied, learned from, and conformed to over time, but since you are not a computer, absent a fictional plot device, there is no way to do this.
Brainwashing, psychotherapy, cult leaders, drugs, religious experiences, and so forth are all real tools that can bring about radical transformations in personality and how someone relates to their past and those around them. None of these are instant and they all require a lot of work by somebody.
