Sport has helped put racism in the spotlight in recent weeks, with NRL players showing their support for the Black Lives Matter movement by taking a knee following their round-five games.

Solidarity was also shown in the AFL world where Carlton forward Eddie Betts has been constantly plagued by racist abuse on social media.

Former Collingwood player Heritier Lumumba has called for his old club to acknowledge they poorly handled the racism he faced during his career.

Two of his former teammates, Brent Macaffer and Chris Dawes, both confirmed Lumumba had been called "chimp" as a nickname.

Mundine said the fight against racism was ongoing and the only way to reduce it was through constant education.

"A long way [to go]. It's sad. I've been fighting for equality my whole career," he told The Canberra Times on Wednesday.

"Racism is like a wild fire, like hell fire - it's always going to rage. But all we can do as people is try to educate, educate.

"Education is like pouring water on the fire. But it's always going to burn. You've got to try and limit it as much as we can."

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Mundine backed Betts for calling out racism. It's something Mundine's been a pioneer of for Indigenous athletes.

He said racism was taught and the only way to stop it was to change the way people see things.

Mundine felt Australia's culture of "taking the mickey" played a role in normalising racism.

"Obviously it's a good thing [calling out racism]. It's all about education," Mundine said.

"You get a three year-old and a three-year-old, black and white, they'll play with each other.

"They wouldn't even know what racism is because racism is taught. It's all about education of the people.

"The psyche of the white Australian is they take it as a joke ... it's all taking the mickey, but they don't understand the effect it has to a black fella.

"That's how it's played off. Systematically from a young age you're taught racism.

"It's about educating the people and letting them learn about Aboriginal ways and culture, and how to interact with each other."

Mundine has teamed up with Gosh Daher to form MGM Building Maintenance and make concrete roadside barriers boasting the colours of the Aboriginal flag.

They'll be made in Queanbeyan, with currently three or four Indigenous people involved in the program. But Mundine's hoping it will expand.

"It's very empowering as an Aboriginal man seeing the presence of culture throughout the road system, especially those that worked on them," he said.

"They see them and it brings them up, 'I've been a part of that'.

"Even if you're not a part of it, seeing the colours - that's your mob, that's your people, who you are. It empowers them that way too."

Thursday: Launch of the Indigenous roadside barrier program at Precast Concrete Solutions, Queanbeyan East, 12.30pm.