This argument is specifically, and repeatedly, addressed by Greenwald in his article. [1]
> The Hunter Biden documents have at least as much verification as those other archives that were widely reported. There are sources in the email chains who have verified that the published emails are accurate. The archive contains private photos and videos of Hunter whose authenticity is not in doubt. A former business partner of Hunter has stated, unequivocally and on the record, that not only are the emails authentic but they describe events accurately, including proposed participation by the former Vice President in at least one deal Hunter and Jim Biden were pursuing in China. And, most importantly of all, neither Hunter Biden nor the Biden campaign has even suggested, let alone claimed, that a single email or text is fake.
> The Hunter Biden documents have at least as much verification as those other archives that were widely reported. There are sources in the email chains who have verified that the published emails are accurate. The archive contains private photos and videos of Hunter whose authenticity is not in doubt. A former business partner of Hunter has stated, unequivocally and on the record, that not only are the emails authentic but they describe events accurately, including proposed participation by the former Vice President in at least one deal Hunter and Jim Biden were pursuing in China. And, most importantly of all, neither Hunter Biden nor the Biden campaign has even suggested, let alone claimed, that a single email or text is fake.
1 - https://greenwald.substack.com/p/article-on-joe-and-hunter-b...