Bottom line, if you think all the investigators who have been there are lying, where's your evidence.
You seem to have some deep seeded hatred of all things Serb, I don't know any Serbs and don't have a dog in that fight; however, clearly you do and that might explain why you are willing to discount firsthand accounts from the left and the right, and even from foreign sources, while clinging to your own beliefs without reservation even in the absence of any evidence whatsoever. Yes, you mention “mass graves” but you and I both know there is a reason you do not provide any source document. There isn't any.
Your insults aside, I don't think you are ignorant and gullible. I suspect you know the truth, it just doesn't fit with your agenda so you simply invent your own truth.
Best of luck to ya.