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.