The One Nation leader has come under fire from both major parties for comments made on a visit to the UK, during which she appeared before a small crowd at a conservative conference in London.
She told the function room - which footage from the event on Saturday showed to be less than one-third full - that Australia had been "flooded" with migrants and gone "completely woke" over transgender rights.
Her speech capped a high-profile European trip that included a podcast interview with English anti-immigration activist and convicted criminal Tommy Robinson and an appearance at the Dolce & Gabbana fashion show in Italy with billionaire donor Gina Rinehart.
"I'm getting feedback from Australia, from the media, saying how dare I associate with Tommy Robinson? How dare I speak to him?" Senator Hanson told the CPAC GB conference.
"Do not apologise for being white. I'm sick of hearing about white privilege."
Australia was "too stupid" to get its laws surrounding discrimination against transgender people right, Senator Hanson said, praising a UK court decision that ruled the legal definition of a woman depended on their biological sex.
"There's going to be so much psychological damage that's going to be done to our future generations," she said.
Asked about the remarks, Liberal moderate and frontbencher Andrew Bragg said Ms Hanson was going out of her way to make life harder for minorities.
"The idea that there's a spectre of transgender people taking over Australia, I just think is insane," he told ABC's Insiders program on Sunday.
He refused to be drawn, however, on whether the coalition ought to rule out a potential preference deal with the minor party at the next federal election.
Instead, he extended his critique to the government, insisting picking between Labor and One Nation as the worst party would be a coin toss as he labelled both "terrible".
Other speakers at the London event included Nationals senator Bridget McKenzie, Reform UK leader Nigel Farage and short-lived former Tory prime minister Liz Truss.
After an earlier meeting with Mr Farage fell over due to his resignation from the UK parliament to recontest his seat in a by-election, Senator Hanson and the Reform leader met briefly on the sidelines of the conference.
The One Nation leader separately released a video responding to "false allegations" she wanted to reintroduce the White Australia policy after comments she made in her interview with Robinson.
"Never, ever have I advocated that and I don't believe in that," she said.
"Yes, I've been strong on immigration. Bringing the right people into the country in a measured way and people who want to assimilate and be Australians."
In the interview with Robinson, whose real name is Stephen Christopher Yaxley-Lennon, Senator Hanson was asked how Australia ended up with "Pakistanis, Somalis, all of these African problems with violent Africans".
She cited the abolition of the White Australia policy by the Whitlam Labor government in 1973 as the reason.
NSW Premier Chris Minns said it was "blatantly unfair" and untrue to blame non-white migrants for any problems that existed in Australia, adding any attempt to return to past discriminatory policies would undermine the nation's standing.
"That would make Australia a pariah nation, probably one of the only in the world that had that kind of race-based immigration policies," he said.
Deputy Liberal leader Jane Hume said Senator Hanson's comments about the policy were "unnecessary", "divisive", "inflammatory" and "totally un-Australian".
She said no one had raised the discriminatory immigration scheme or banning the burqa in her discussions with Australians in an interview with Sky News on Sunday.
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