Climate activist Raymond Weatherall is crystal clear about what should happen to new gas and oil projects.
"They don't deserve to be on our country," he said.
"And if we beat (mining company) Santos, it will inspire other Aboriginal people to say 'no, stop coming onto our land and killing it'."
Unions, religious groups, climate activists and high school students rallied outside NSW Parliament house on Monday, demanding the government put a stop to new coal and gas projects.
Mr Weatherall is leading the fight against Santos' Narrabri gas project, and is one of 18 Gomeroi people on a representative body of the native title claimants.
Santos launched proceedings last year in the national native title tribunal to continue its 850-well coal seam gas project in northwest NSW without consent from the Gomeroi People.
Traditional owners voted 162-2, with four abstentions, to reject the agreement.
The NSW and federal governments approved the Narrabri project in 2020.
High school student Alice, 14, skipped class to attend the rally with her mother and friends in support of the Gomeroi people.
"If the government isn't going protect our futures, then we'll do it ourselves," she told AAP.
"Sometimes adults don't want to tell us what's really happening because it was their responsibility, and it's a hard idea to face but it's real and we need to do something about it."
Protesters also called on the government to repeal anti-protest laws.
Construction union secretary Darren Greenfield said Sydney would not be the same without protests.
"Circular Quay, the Rocks - they would have been trampled many years ago if not for our forefathers standing up to protest," he said at the rally.
"Think about the people that put you in this house and put you into government and get rid of these anti-protest laws.
"Scrap them tonight."
