> "you is whoever they get the program from"
That's not how it works. "You" is, consistently throughout the GPL, whoever gets the program under the GPL license, and that license is between "You" and the copyright holders on the program (i.e. the licensors).
The person who is "you" can, in another situation, be a licensor or mere redistributor, but that's irrelevant to the legal relationship at stake here (i.e the relationship between the copyright holders and a person who failed to comply with the GPL).