Argument from igorance. If you want to claim that supposed junk DNA is involved in developing personalities then show us the evidence. Pointing to our ignorance of brain development is not evidence for anything you can dream up at the drop of a hat.
I have already explained this. If a DNA sequence has function that function will depend on its sequence. I am sure that you would agree that a function will not have an infinite number of DNA sequences that all perform that same function, especially when you are looking at a system limited to inheritance like DNA is. Therefore, any sequence with function will lose that function when certain mutations occur within that sequence. If the fitness of the organism is decreased because of that mutation then it will be selected against. If changes to a specific DNA sequence change function to a beneficial function, you will see a strong selection for changes. In between conservation of function and evolution of new function you have neutral drift. This is where each and every mutation has equal chances of being passed on, and this produces a predictable rate of divergence between species and within the species.
Therefore, when we find DNA sequence that is diverging as if the sequence of that DNA does not matter to the fitness of individual it is evidence that it doesn't have function. It is also worth mentioning that this technique is capable of differentiating between known pseudogenes (e.g. human vitamin c gene knockout) and genes with known function.
I strongly suspect that no amount of evidence will convince you otherwise. You have an emotional reaction to a percentage, and that isn't going to be changed by evidence.
Sorry, but commonly used equations that have been thoroughly vetted within the science of population genetics is not a personal, subjective choice. It is as scientific as it gets.