That is good. I did a little research about roosters back when I had a free one. Some roosters are more aggressive than others and there isn't really anything you can do to prevent or change an human aggressive rooster.
Yeah I tried to make it work but you can't change nature. Originally I bought straight runs and wound up with all roosters, so I gave away all but one and bought 4 sexed pullets. Up until the past couple weeks he'd been fine but then he started getting aggressive and causing chaos in the coop. I have hawks so I can't free range them which adds to the stress. I think it'll just be a lot easier and calmer to have all hens for now. I'll be able to switch to regular layer feed and skip the oyster shell.
I will miss his crowing. My neighbors won't.