Simply give an argument against it if you're willing to teach others.
It's much easier to do that if the author is willing to actually provide an argument in written form instead of only being able to make his case in a YouTube video. Avoidance of the written word in favor of video to make deep arguments is generally a good signal of unclear thinking.
If it's worth saying, but not worth its own post, then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should start on Monday, and end on Sunday.
4. Unflag the two options "Notify me of new top level comments on this article" and "