You can see in this picture. That the magnetic effect of a black hole reflects the rotating optical magnetic force. And we can name the magnetic effect, the optical magnet effect.
The image was produced at a wavelength of ~ 1 mm (the short end of radio), not in optical light.
It shows the polarization inherent in synchrotron radiation from plasma moving in a strong magnetic field. This effect is well-understood and does not require a new name.
I showed this picture so that you can know about it. And no theory is analyzed. and would be linked to one or more theories. For example, to get an equation, different numbers are needed. Similarly it is also. This is only discusion. Not an article or research item.