I don’t need to prove it to anybody. I know it’s a thing, that’s good enough for me.
These debates always leave me wondering if some people aren’t actually conscious. Some of these arguments wouldn’t make any sense to someone who actually experiences qualia. I liken it to the old debate over the existence of mental imagery, which was finally settled as being something that some people have and some don’t. But until that was figured out, the two sides just didn’t comprehend each other.