I'm thinking just about the opposite of this entire post.I have six roosters and granted I have cycled out some of my boys that just seem way too rowdy for their own good. But over the last 22 years of having chickens I've learned a few things.
The first is never treat your roosters with aggression. They are acting aggressively towards you because they feel threatened BY you. Not that you've ever done anything to them. But your bigger, you come and steal the butt nuggets, the hens love you, and more ladies follow you around because your the Bringer of Food.
The second is understand that they are jealous of your role in the flock. Some roosters can get over this as they mature. Some roosters never have this issue in the first place.
Third f you have too many roosters this can cause conflict and fighting over hens, food, and places to lay.
So with those three things in mind it should help put into perspective as to why they are acting the way they are acting (some are just jerks).
Why no aggression back? Aggression breeds aggression. By kicking them, hitting them with water, using shaker cans or anything else you are teaching them to fear you and that you bring pain in addition to the jealousy. That will lead to a rooster that will someday snap. That's not okay for him or you. I fully recommend the carry method. By picking up the rooster that is out of sorts and tucking them under your arm (not hurting them, pinching their comb or anything else) you are making them gently submit. They cannot fight you in this position. You are not being aggressive and there is nothing threatening about what you are doing. Carry him around with you for about fifteen to thirty minutes a day or even thirty minutes twice daily, whenever you are doing your chores around the coop. This tells him firmly that you are bigger, you are top rooster, and that he's safe. Now. If this doesn't work after a few days it's probably best to rehome him. I've had a few that there were just not going to settle and I draw the line with them if they go after the kids.
I don't believe a rooster will act aggressive towards you because they are feeling threatened.
They get aggressive when they don't feel threatened. I have many roosters and usually when one is feeling threatened by another they will submit and move on and there's no issue. Here it is a very rare occasion to have an actual fight but if it happens it is when two roosters neither feel threatened by the other and both have the idea that they can dominate the other.
As far as jealousy there is no such emotion in chickens. They do not have the mindset to feel jealous. That's just an emotion we project on them because we are misunderstanding them and thinking they have all the emotions we have and we feel the need to make sense out of a situation that's happening.
Of course the more roosters you have the more chances there are for issues.
With enough roosters there surely can be conflict over hens and food but I've never had a issue of lack of places to lay being an issue for roosters.
Mine must be all duds because none of them lay.
Also don't buy into the whole carrying them around thing. First off if a rooster is being aggressive trying to catch them and carrying them around puts you at more risk and just my opinion is that it teaches them nothing.
They don't understand what you are doing and it seems it would only aggravate the rooster and the aggression situation.