"Abhorrent" and hurtful comments about First Peoples can't be glossed over and can't be accepted, Bundjalung and Kamilaroi man and Victorian Socialists candidate for Williamstown, Oskar Martin, says, following the disendorsing of the former Liberal candidate in his seat.

On Wednesday night the Victorian Liberals dumped their candidate for the western Melbourne seat, Paul Lindemann, after "offensive" and "unacceptable" social media activity surfaced, the party confirmed.

The Liberal Party withdrew its support and endorsement due to "comments and views expressed by Mr Lindemann about Indigenous Australians that have recently come to light and were not previously known to the Party," the party said in a statement.

In the comments, dating back to 2023 and through an alias on Facebook, he reportedly referred to First Nations people as "the most primitive homo sapiens on Earth" who were "never civilised" alongside the use of terms "half-breed" and "full blood".

Mr Lindemann had earlier come under fire for his alleged conduct as a junior basketball coach.

"This is the type of racism that not only myself but other Aboriginal people in this state and across the country just experience. It's just absolutely disgusting that it's come out in election time, especially from a person who was previously touted as potentially winning this seat," Mr Martin told National Indigenous Times.

The attacks, particularly those relating to Aboriginal status with use of historically offensive terms are "incredibly racist and hurtful", particularly for survivors and families connected to the Stolen Generations, Mr Martin added.

It's a "racist vitriol that has just been on display, not only for the past few years, but even in this election" he said.

Mr Martin warned this election, examples of candidates and policy, threaten the short-term future of Indigenous politics in Victoria, and in some examples "represent a history of intense racism against Aboriginal people".

Mr Lindemann has not publicly commented since being disendorsed.

In their statement on Wednesday night the Liberal Party wrote: "These comments are offensive, unacceptable and inconsistent with the values and standards expected of Liberal candidates."

"All candidates are expected to treat Australians with dignity and respect. Mr Lindemann's comments fell short of that standard."

Appearing on ABC News Breakfast on Thursday morning, Liberal leader Jess Wilson said she was disappointed the reported comments, which the party had not previously been aware of, slipped through their vetting process.

"I have the highest of standards when it comes to my team, and we acted swiftly to disendorse," she said.

"As soon as we became aware, we took strong action and disendorsed the candidate."

Mr Lindemann will remain on ballot papers in Williamstown given the proximity to the state election on November 28.

As reported by the ABC on Thursday, Gellung Warl co-chair Djaran Murray-Jackson said: "The right decision has been made in withdrawing support from a candidate who uses racist and dehumanising terminology; language that was directly associated with harmful policies that inflicted real and lasting damage to our people."

"Truth and Treaty honours a new path forward to learn and acknowledge our past, heal and to shape better futures for generations to come," he said.

Gellung Warl is the elected representative body for First Peoples in Victoria, established under the state's Treaty process.

In a Victorian Socialists statement on Wednesday night, Mr Martin said: "Instead of attacking Indigenous people who face ongoing oppression and marginalisation from Australian society, we should be focused on how to address poverty, homelessness, and other continuing consequences of the genocide and disposession my people have faced."

Speaking with this masthead on Thursday, he said if racism isn't stood up against, it continues.

"The comments are just so utterly shocking. I have dealt with racism before. In a really unfortunant [way]....It sometimes doesn't come as a shock to me, but sometimes it does," Mr Martin said.

"This time, it just really did hit me. And I am the Indigenous candidate in Williamstown. I have to stand up because if no one stands up, then this becomes just accepted."

He asked for a frank conversation about persisting racism in the political sphere.