In chickens, human aggression appears to be a separate trait genetically, and might appear regardless of your management style. However, many of us old fogies, with lots of experience with cockerels of all sorts, feel that it's best to be the giant who brings food, and not cuddle them. Pullets and hens, sure, but not the boys.
Game bred roosters, who happily will fight each other to the death, tend to be very good with humans, by all reports, because over generations they have been selected for those traits.
People who raise calves or foals on the bottle successfully are very very careful to manage them with safety in mind! Having them disrespectful early is a disaster later!!!
Mary