Rewatch EaF and you'll understand what I mean.
I rewatched it fairly recently and I'm still not quite sure what you mean. Q puts humanity on trial for the crime of being a "dangerous, savage, child race" and tells Picard to turn back and return to Earth. Picard invites Q to test him and his crew as representatives of humanity. At no point did Q threaten to destroy the human race.
From
AGT:
Q: "It's time to put an end to your 'trek' through the stars, make room for other more worthy species."
Picard: "You're... going to deny us travel through space?"
The court laughs.
Q (
laughing): "No! No! You obtuse piece of flotsam. You are to be denied
existence. Humanity's fate has been sealed, you will be destroyed."
Picard: "Q, I do not believe that even you are capable of such an act."