I dont think anyone is trying to make me feel sad on purpose.
And im fully aware that human has made this world a battlefield.
All I want is this one simple answer: What is Karma? The police force of the universe? revenge squad? peace keeper? Whatever Karma is, it sound extremely irrational to punish a soul for what it has done in its past life, without the soul knowing what it did that was so terrible. I would accept that if there was a lesson to be learned.
This is like sedating a criminal with Rohypnol so he wont remember what he did, then when sober, imprison him without an explanation. Just tell him that you have committed a crime that you have no recollection of and we wont tell you what the crime was, but now here is your punishment. and by the way, when you are being punished, we are going to give you some more Rohypnol so you wont remember the punishment either. in this case, replace Rohypnol with reincarnation.
Sorry but what you are describing is highly irrational. If you truly believe in that, you are living in hell. a Rohypnol induced hell.