Anthony posted the impassioned plea only hours after the Dallas shooting, saying, "We need to be smart about what we are doing. We need to steer our anger in the right direction."
Melo says the answer isn't in marches or posts on social media ... "we tried that."
But it isn't in violence either ... "Shooting 11 cops and killing 5 WILL NOT work."
Anthony admits he doesn't have the solution ... but called on "all my fellow ATHLETES to step up and take charge" .