Basic physics Q on light - why is visible light not effected by magnetism?

Hi. There is one thing that I have always been confused about visible
light as an electromagnetic force. I understand light to be an
electromagnetic wave propagating through space with the the magnetic
and electro forces alternately collapsing and expanding. This
alternate fluctuations in the magnetica and electro force are seen as
the frequency of a light's wave.

What I don't get is why visible light is not then bent by magnetic
fields? What I am missing here?

- Canopus56
.

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