That's not the case in the US. Our laws bar the contractor from having set hours, a set place of work, and a myriad of other rules. So if a contractor comes in 9 to 5 and has his own desk, he'll be classified as an employee. Honestly, I would prefer a similar % rule, that seems simpler and I think would accomplish the intent far better than what we have now.
No, because the revenue test is one of the criteria the judge/IRS looks at. There are other criteria like where and how the "contractor" wants the job done and the relationship between the parties.
Youtube does not tell these Youtubers how to present their videos
Youtube does not tell these Youtubers how long their videos should be
Youtube does not tell these Youtubers when they should release the video
Youtube does not tell these Youtubers what target audience they should be making videos for
Youtube does not tell these Youtubers what income they will get per video made regardless of how popular the video is (surge pricing anyone?)
Uber does.