Oh he's soooo cute!
kcan2 You have a little parrotlet

. So you got the basic idea of what I'm talking about. Right now I have a Sun Conure (I rescued from a girl who taught it to bite, literally chew your skin. Took me over 6 months to get it to stop and they have beaks like scalpels ), a Peachface lovebird (who just loves me all the time)
and a couple of Blackmask lovebirds who pretend they are feral. Yes parrots are more intelligent than chickens but chickens can also be "clicker" trained so they do respond... just takes a little more a little different.
I have given away a rooster who was "mean". It was mean to the other chickens and to my favorite Rooster. Those kind are just removed because that's a death match waiting to happen when you aren't home. My Roosters have always been cuddlebugs, are almost as intelligent as the parrots and insure that I too get my share of dances and fresh bugs.
Just like parrots, they know when you are afraid of them and so do the hens. I have friends with over 20 chickens and 3 roosters. The flock they raised from chicks are all tame, but the friends (green acres, citified people) are afraid of them . When I go over there to collect some eggs for the incubator the friends are afraid to take the eggs from the sitting, growling, broody hen... "hold my basket...Its Ok, I've been bit by a macaw (actually I think the Sun Conure has been worse)...I can handle this"...talk to the hen, pet her, calm her down and take the egg. Same with the cochin rooster who chases people...if you know he's going to chase you and attack why are you wearing shorts and flip flops around him? Bright white featherless legs and rubber things slapping your feet! The rooster chases when you turn your back on him and move too fast. The hackles flare and away he goes... but you can pick him up, pet him, haul him around like a football and he's like "Ok", set him down and he's Ok for a few steps and then pow, hit by a puff ball with a sharp beak. I use the same signaling to him that I use with the parrots...tell him NO, flick his beak (yes sometimes you have to do that with a parrot for them to get the idea that biting is NOT acceptable but rarely and after a relationship has been built) and don't run or walk away, STOMP, STOMP, STOMP. He's like "OK your the big Roo". Pick him up when he gets near again and pet him. The Roos test. You run... that's it...game on.
This is NOT their cochin. This YouTuber made a channel from his inability to manage his Rooster, Kyle... (actually the owner seems to be amused),
Know what triggers your Roo. Fast movements, certain clothes, kicking out, Kyle has learned to expect a fight from this man. They have a unique relationship.
If you are NOT a Youtuber and just want a nice Roo. Never kick out to a Rooster! Game on!
Pick him up... pet him...put him down. Stand there. If he moves to get you...repeat. Its like catching a bowling ball. If you put him down and he sees you move fast that could be a trigger. Petting is best. Only use the Stomp tactic if you are experienced.