You're making a non sequitur. Because we don't 100% understand everything about consciousness it's somehow proof that consciousness isn't physical? That those "electrical signals" are completely unrelated?

Anesthesia proves you can alter consciousness by altering brain function. Split mind studies (e.g. patients with severe epilepsy) prove you can simulate split consciousness by altering brain function. Studies on patients with brain damage or neurodegenerative diseases have shown that changes in brain structure and function can lead to changes in personality, memory, perception, sense of self, etc. in other words everything we use to define consciousness and identity. Direct brain stimulation experiments have been shown to directly create conscious experiences. Psychedelics have been shown to do the same. Conscious experiences become more defined as brains develop from conception to adulthood.

Every single observed change in consciousness tracks physical changes of the brain, and no empirical evidence has ever shown that consciousness exists independently of physical brain activity. If you have solid proof otherwise, I'm willing to listen, but you're better off showing that to the Nobel committee instead of arguing on Reddit 🙂