It’s possible that you’re not conscious. So your subjective view may be correct for you. To those who are conscious, this argument doesn’t really matter, and the proof is simply in the pudding.
It’s a subjective experience argument. As a conscious person, if someone tells me they don’t believe in consciousness, then I’m inclined to believe they have a reason for saying that. They must not be experiencing consciousness the same way I am.
Interestingly, a non-trivial number of people have no internal monologue (https://www.iflscience.com/people-with-no-internal-monologue...). It would be reasonable to assume the experiential side of consciousness is on a spectrum, with extreme edge cases on both ends. It’s not unreasonable to assume that some people are barely experiencing it, and some not at all. It would certainly explain to me (someone who experiences it quite intensely) why some would claim it doesn’t exist. Because for them, it might not.
"Earth is flat" is also a subjective experience argument. Yet mostly nobody takes it seriously anymore. I hope "qualia" will be like this soon too.
If I tell you that I see numbers as colours, and you say "that's not possible", I would assume that you don't have synesthesia [1]. I wouldn't doubt the fact that I have it [2].
Similarly, if some people argue that consciousness is not something like I describe, I would naturally assume that they don't experience it the same way as I do.
[1] https://en.wikipedia.org/wiki/Synesthesia
[2] Someone I know has synesthesia. I don't have any way to confirm or deny that. All I can say is I don't have it.