However being occupied with motifs about your parents is not the same as examining why there is a problem there in the first place. The motifs can be complicated of course, but that is not the same as a solution. For example person A. can be very involved in examining his view of the personality of his mother, but although this leads to myriads of thoughts about her personality, it never makes him feel any better. This is because a crucial part of his misery has been left unexamined, for example the reason why he feels that he should be so pre-occupied with her in the first place.
The thing is i am preoccupied less with them now then i was a while ago.
But still, i only thought a few times about this. Why was i/am i preocupied is something worth looking into ...
Now, i know you never said the following example is about me, and that any of the theories would apply to me, but i'd still like to analise it as if it was propsed to apply to me.
Here is a typical example of such a reason (by typical i mean that in the bibliography of psychology it is quite well known, at least as something which can happen). Person A. has a younger sibling. When person A. was small (eg 2 years old) he was very envious of the sibling and thought of harming it, so that he could become again the only child and so have all of the attention of his parents. When person A was that child he had still an entirely idealised way of thinking of his parents, and so they were seen as something "good" (whatever that meant for him). However person A is not let to destroy the sibling. Some solution is given to the idea that he could, but no solutionis given to what he felt.
Intresting example, i would've never thought of it ... I'll discuss about the first part of it.
Actually i am the younger sibling in the family.

I have a bigger brother.
In him i see some of the same problems i have, which is another proof that our parents had some sort of bad influence on us.
As for the parents, they always treated us equally ... some might say disturbingly equal. Mom always uses the plural when arguing with either one of us.

And i remember dad beating both of us up even when only one of us did smthing wrong.
Now fast forward 5,10,20 years. Person A. is an adolescent. He has forgotten all about his thoughts when he was an infant. Yet he has developed over the years an obsessive relation with his parents, at the same time trying to keep them as much away as possible, which he does by analysing how he views them. Still he cannot feel that he can break free from them, but he cannot explain why he feels that either. The fact that when he was 2 he mentioned to his mother that he would like to get rid of his sibling, and that his mother dismissed that idea in a hasty manner, without bothering to explain why she thought that it was insignificant (she might even have laughed, or found it funny, since she did not expect that anything could happen to the sibling anyway) was repressed, and now subconsciously person A. still sees his mother (along with all the other views he has of her) as a kind of protector of his sibling, and as someone a lot more ethical than him. This can expand to many other directions, but the bottom line is that his mother has become a type of symbol of "good" nomatter how much he consciously tries to dismiss that. The repressed view cannot be reached, and so his entire discource cannot get to it.
This is just one example of how one can fail to find what the underlying issue is, when he spends a lot of time an energy for thinking seemingly of the same issue (his parents)

But there's something wrong with this whole "repressed memories" theory. Personally, i don't believe in it (not entirely anyway) ... Why ? Because there is no guarantee that the memory existed in the first place. How exactly is a repressed memory "found" by the psychologist ? If you say hypnosis i will slap you.
Why i can't believe in this entirely is because it more of an assumption. The psychologist the cause of the problem is a repressed memory, and thinks of what memory it could be.
This is the reason why i believe in the theory somewhat:
Now, in your example, if the MOTHER would tell the psychologist what sibling A wanted to do at that age, then the theory would be (mostly) true.
But the discussion of whether the Represed memory theory is true/false should take place in another thread ...
I should discuss the example itself now.
About this part:
Still he cannot feel that he can break free from them, but he cannot explain why he feels that either.
I don't know if i can break free from them. I've never been away for that long to be able to tell if i can tho.
And this part:
his mother has become a type of symbol of "good" nomatter how much he consciously tries to dismiss that.
It is partially true. I don't think my parents are REALLY bad; i mean like the ones i see on the news. Some aspects of their "education" i see as good things. It's just that some are so

.
This
might be the reason why when they say something bad about me i feel really bad, but when anybody else says it, i don't feel anything. But still, i cannot believe this is the reason because the bad parts were there very early. I mean i was like 5-6 years old when i realised something was wrong, things weren't going somewhere "good".
But for the heck of it, let's assume this.
Let's assume a "deified" version of my parents is stuck in my head and everytime they prove it is wrong it hurts, and i can't do anything about it.
How could knowing this possibly help me ?