I am sure I am going to be considered insensitive, but I am going to say this anyway. The moment anyone decides to keep a rooster for any reason is the day they need to be prepared to deal with its behavior in one way or another.
If it is impossible for one to eat, cull, "take care of the problem" by making it go away, then there is often little choice but to live with the rooster. Roosters are very difficult in many cases to give away much less sell. If Making the problem go away is a problem I suggest one should reconsider their decision to keep poultry.
I think it just goes with the territory, if you are going to have a rooster odds are that sooner or later you will have to make a decision about how to handle it. Frankly it takes me about a minute to figure out what to do with an ill behaved rooster. And at that time that rooster is not longer a threat or a problem. I have no fear of them I am not concerned about being injured by a rooster, but I have a two year old grandson that does not need to be flogged by one of the mean son of a guns. So it is a simple decision for me.