Not all roosters have spurs and not all hens don't. Some roosters I've had failed to grow spurs and some hens I've had grew long and strong spurs.
If roosters are raised in a normal family environment, with hens and chicks and other males, or even just watch young chicks grow into adult males, they can be very tolerant. Whether or not you need to separate them depends on the nature of your roosters, not the fact that they're male.
A chicken bullying others is a non-gender-specific trait. I cull bullies so my flock can be happier and safer and thus healthier and save me a lot of trouble, and them a lot of injury and stress. Bullies tend to breed bully offspring. The key is to know the difference between sorting out the hierarchy and just plain attacking birds that aren't offering any challenge.
The absolute minimum hen to rooster ratio is one rooster per every one hen. If they can freerange, each rooster will likely go his own way with his own girlfriend and avoid the other roosters. This can be impossible with hens who stick to the flock rather than their mate, and roosters who are very aggressive toward other males even when the hierarchy has already been sorted. Also it's harder if they're always caged. Again, this is easiest to solve by rehoming or culling bullies. You won't know if yours are intolerant until you try to keep more than one rooster, and then once you know for sure, how you handle it is up to you.
But if you're not inclined to rehome or cull any bully, you might need cages. They're simple to make out of any sort of scraps... I use mesh, wire, zipties, bed frames, trampoline frames, fences and gates, etc. Separating bullies rather than culling them means you will likely have to permanently keep them separate, though. They can't learn to be tolerant if they refuse to or never have a chance to learn.
Best wishes. If you make 10 posts you can post a photo of your supposed rooster and people can confirm it for you. It could still just be a hen.