Asking people educate themselves is not stretching social harmony.
This is one element of the kick back to criticism of Goodes' that I've found both arrogant and misguided. For anyone who finds any element of Goodes' war cry inappropriate, they are simply told they are insensitive and require education. That's it. End of diologue. There is no meeting of minds; no openness to any but one point of view. This attitude definitely stretches socially harmony IMO and it pervades much of what Goodes says.