Isn't the validity and credibility of the source critical to it being supportive of your argument? Seems like a reasonable counter-argument in my opinion.

I provided a source, and so far all those who’ve disagreed have only provided opinions. No one has cited anything that contradicts my source, so I don’t think it’s reasonable to say that the validity and credibility of my source has been impeached. ‘I don’t like it’ is not a valid criticism of a source.

No, you don't want criticism except on your own terms, but that's not the same as convincing people you are correct.

Not only the source, but the specific repoprting has been refuted already by others.

So you have failed to present an argument, and then continued to fail to support it. So all you have done is express an opinion. Those are fine and allowed, but of no significance to anyone else.