A blind man can make art if what is in his mind can be passed to another mind in some tangible form.

In my mind I'm a blind man doin' time.

When artists make art, they shouldn't question whether it is permissible to do one thing or another.

Even a blind man could see she is beautiful.

My reality needs imagination like a bulb needs a socket. My imagination needs reality like a blind man needs a cane.

Also, since art is a vehicle for the transmission of ideas through form, the reproduction of the form only reinforces the concept. It is the idea that is being reproduced. Anyone who understands the work of art owns it. We all own the Mona Lisa.