All you do by making such statements is shut down the conversation.
Now, there have been some things said above about what "see" means. What you are offering is a physical description of how "seeing" occurs. It's the equivalent of saying, while watching Star Trek (as someone mentioned that above), you're not watching a television show, you're watching coloured rectangles flicker on a screen. Oh, but then you're not "watching" at all, because that's just some uncontrollable electrical impulses occurring in the depths of your brain brought about by ... by .... by what, exactly? If you can't discern an independent reality from your experience of it, you have slipped into solipsism. Maybe you like it there.
"To see" means, and will continue to mean, what it meant before there was the available biological description of the event. "Seeing" is an experience that involves a person and something seen. That is what the biological description seeks to describe. If you attempt to eliminate the actuality of the experience being described by replacing it with a description of how that experience comes to be, you destroy the implicit link between the person and the thing experienced.
It's like "I've been stabbed." But how you want it, "Electrical impulses..." No amount of nattering on about electrical impulses will deal with the practical reality of having a knife shoved in one's chest. But, if you look down, you might see it there.
"Straight" photography is just a description of how one ends up with the image. That it involved no extra destructive or additive steps from bringing whatever the camera recorded to the final presentation of that image. It's incredibly plain and simple to understand. It's like "I'm drinking straight vodka" where that means it was poured from the bottle, into a glass, no ice, no water, no vermouth, no orange juice - just the crap that came out of the bottle, into the glass, down the hatch.
Try it. You might enjoy the electrical impulses.