Father cat will NOT stop meowing and attacking his own son!!!?

Wow, a bit defensive, but I'll give you some advice any way. Cats do not recognize familial bond. The father cat does not recognize the kitten as his offspring, just as an intruder. He is used to having all your attention and the home to himself, this kitten is an intruder and he does not like it. Since the father is the original cat, it really is unfair to keep the new one when the one you already have is CLEARLY expressing his stress and intolerance of the kitten. Get rid of the kitten. It's not want you want to hear probably, but it's what your adult cat needs