Those graphs aren't in any conflict; of course if the proportion of workers in one industry goes down, the proportion of workers employed in some other industry

Those graphs aren't in any conflict; of course if the proportion of workers in one industry goes down, the proportion of workers employed in some other industry must go up, mathematically (the BLS graph being percentage of the total workforce, rather than percentage of the total population). I see your objection that to consider agriculture's decline indicative of the future of labor in general could be considered cherry-picking, but I think the video at least attempts to respond to this charge, explaining why its author does not feel other industries will "pick up the slack" in the same way in the future as happened in the past for jobs lost to automation. [For what it's worth, while enamored of the dream of leisure-society utopia, I am quite skeptical of the author's assessment of the current state of progress on various forms of automation (and thus, a fortiori, of the projected speed at which such automation will take off as ubiquitous in the near future). But I did want to defend them against the charge of not even considering the idea that jobs will simply shift to other industries.]