It's not that multiple males in a group can't work; it just doesn't work for very long in my experience.
These three and a bantam rooster lived together for a bit over a year and then it all went wrong and I was faced with one of those very rare situations where it was quite apparent that one of them was going to get killed in the fighting.
View attachment 3580702
I've had five cockerels all live together (siblings) for a while. At six months or so that all unraveled and one did get killed by the others.
Tribe 2 (Bantams) managed very well with three males, two roosters and one cockerel. Their advantage was they had very strong leadership from the most senior rooster (Harold) and his partner (Bluespot) so there are always the exceptions.