Is there any particular reason (beyond lazy, motivated reasoning) that you think that these drivers represent an appreciable fraction of the Uber workforce? "So

Is there any particular reason (beyond lazy, motivated reasoning) that you think that these drivers represent an appreciable fraction of the Uber workforce? "Some drivers are unhappy" seems roughly as useful a data point as "every Uber driver I've talked to seems happy", which would be rightfully dismissed as unrepresentative by anyone with a modicum of intellectual honesty.