A group of lawyers advocating for vulnerable Kiwis says David Seymour's euthanasia bill poses a serious threat to Māori.

But Seymour says he won't get into an argument with people who compare assisted dying to Nazi eugenics.

The End of Life Choice Bill was tabled in Parliament on Tuesday, almost two years after it was first introduced. It would give people the option to request assisted dying if they have a terminal illness of a "grievous and irremediable medical condition".

The Bill has been met with staunch opposition from some organisations, including the New Zealand Disability Rights Commissioner, the New Zealand Medical Association and Hospice New Zealand.

One such group, Lawyers for Vulnerable New Zealanders (LVNZ), has launched a website dedicated to identifying what it says are 35 critical flaws in the proposed Bill. Members of the group say one of those flaws is that the Bill poses a particular threat to Māori, who are overrepresented in the country's suicide, terminal illness and chronic sickness rates as well as mental health and disability rates.

"Government has social policy responsibilities toward Māori under Article 3 of the Treaty of Waitangi," disability rights advocate and former legal academic Dr Huhana Hickey says.

"This Bill threatens vulnerable Māori who are old, sick or disabled and who are already being failed by our health system according to a large claim currently before the Waitangi Tribunal."

"We need clear minds to come together to ensure that our most vulnerable - who are many - are given the same level of support and dignity as those privileged few who have greater resources, access and social capital," says Hickey. "This Bill is not the solution."

However Seymour refuses to respond to Hickey's criticism due to something she tweeted about the Bill on Tuesday morning.

"While I respect Dr Hickey's right to have a view on this issue, I have seen her compare the End of Life Choice Bill with Nazi eugenics and I politely decline to engage with a person who debates at that level," he told Newshub.

