Trying to understand. If someone needs to turn right ahead of me, they signal, I brake if needed, they turn, and I proceed once they are done.
If they are a lane over, they move to my lane first. They signal, I let them in to a gap even if it means I need to brake, they signal to turn, etc.
If there is a cyclist to my right rear in my lane, I would expect them to yield to me if I was ahead of them turning right. Even if they had to brake a bit to make this work. I am in the rightmost lane, turning right. I have the right of way, as far as I know.