Maybe too much handling is a problem, and maybe not. Cockerels can be raised that way and be fine, although I don't do that here. i want cockerels to respect my space and pay attention to their flockmates.
It takes some experience to interpret what's going on in their little brains, and sometimes what looks like 'friendliness' is actually 'bold' and then obnoxious aggression.
Game fowl in general were bred to be polite towards humans, and want to fight each other. Depending on how far these cockerels are from their cock fighting ancestors, they might follow this pattern.
Mary