One Nation leader Pauline Hanson has doubled down on her call for Australia to become a 'monoculture', expanding on her position after fierce debate erupted over her National Press Club speech.

During her remarks last week, Hanson said the nation has a multiracial society but 'must be monocultural' and Australians 'must live under the one cultural umbrella'.

The speech sparked significant public backlash which the One Nation leader has told senators was the exact reaction she set out to provoke.

'You'd be forgiven for thinking I had slaughtered a sacred cow at the National Press Club last week... It's exactly what I intended,' she said on Wednesday.

She said Australians 'must never be afraid to debate any issue' and should be willing to 'challenge long-held assumptions'.

Hanson also attacked multiculturalism, claiming there was broad public support for her views.

'A poll of more than 11,000 people... showed 66 per cent of people want Australia to be a monocultural nation, with only 21 per cent wanting Australia to be multicultural,' she said.

'Some sacred cows are not so sacred after all.'

Hanson referenced former world leaders who criticised multiculturalism, including German Chancellor Angela Merkel and British Prime Minister David Cameron. 

She said her model of monoculture was unified but open, stressing it is 'not exclusive, it is welcoming... an umbrella which covers all manner of difference'.

To critics who argue her position ignores the diversity of the Socceroos national football team, Hanson said the football team embody her ideals.

'The Socceroos... represent my vision... people from different backgrounds and cultures... all wearing green and gold, representing one nation under one flag,' she said.

'Increasingly... there are people choosing to come to Australia with no intention of becoming Australian or accepting Australian values.

'If we're going to accept you, you must accept us too. That's not too much to ask.'

Hanson referenced past tensions, including the Cronulla riots, which she claimed were caused by 'Muslims attacking Australian women for wearing bikinis at the beach'.

She said the riots showed a clash of values, arguing Australia must 'draw the line on things incompatible with our culture'.

Hanson listed practices she said have no place in Australia, including Sharia law, child marriages, female circumcision, sex selective abortion, and the burka.

'Burkas are about confining and controlling women... Under a One Nation government, they will be banned,' she said.

A monoculture is one built on core national principles including 'a fair go, tolerance, secular democracy, freedom of speech and religion and the rule of law', according to the senator.

'It means accepting our irreverence and larrikinism,' she said.

'Bring back Paul Hogan and Norman Gunston.'

Despite her criticism of multiculturalism, Hanson said she was not calling for cultural traditions to disappear, but for migrants to embrace a shared national identity.

'Come here with your Greek salad, your Italian pasta, your Chinese stir fry, your Indian curry,' she said.