The examination of the party's worst electoral result in history has also singled out then-leader Peter Dutton's personality, a lack of coherent policies and poor campaigning.
The Liberals put off almost all demographics, especially women, young people and multicultural Australians.
"The party's capacity to thoughtlessly offend groups, including the Chinese, was, as others have observed, a widespread problem," according to the report compiled by party elders Nick Minchin and Pru Goward.
"The 2025 federal Liberal campaign failure is widely considered to be the worst campaign the party has ever fought."
Liberals criticised the lack of women's policies in their submissions, while female candidates told reviewers Mr Dutton was disliked by women and they didn't want him to visit their electorates.
"Peter Dutton's previous ministerial image as a hard man needed considerable work with paid and unpaid media, but that did not eventuate," the review noted.
"Peter Dutton was viewed as lacking connection with women and younger voters."
This was compounded by Labor's "negative portrayal of Peter Dutton with personal references to Voldemort and Mediscare".
Mr Dutton's reflection of US President Donald Trump, described "in the unkind words of one candidate (as) Temu Trump", handicapped the campaign.
So too did the then-leader attending a fundraiser in Sydney when his Brisbane-based electorate was subject to floods, while the prime minister was highly visible on the ground during the natural disaster.
His actions were compared to former prime minister Scott Morrison, whose decision to holiday during the 2019 bushfires was "a political disaster".
"It contributed to the perception of Peter Dutton as a politician who did not care," the report said.
"The electorate expects to see and hear an upbeat and inspiring leader. All of that was lacking and the leader's grim and introverted demeanour, clothed in the ubiquitous suit whatever the occasion, did not change during the campaign."
A crack down on working from home arrangements, which was later scrapped because of its unpopularity, was one such policy that alienated voters, and a regional candidate said it cost her the seat.
"After at least a decade of a declining female vote it remains a mystery that the party has not performed a deep-dive into its causes," the review said.
Angus Taylor took over the party's top job in February after knifing Sussan Ley, the federal Liberals' first female leader.
It resulted in the head of Hilma's Network, an organisation which aims to promote Liberal women, to resign her membership.
The review had said the party should work closer with Hilma's Network to improve female representation and policies.
Mr Taylor continues to take a harder line on immigration and has made subscribing to "Australian values" the cornerstone of his pitch.
The leader dumped moderate Paul Scarr from the immigration portfolio after he had urged his colleagues to stay away from anti-migrant rhetoric.
The review also found the Liberals' opposition to Labor's tax cuts on the eve of the election "immediately impacted on the coalition's economic credentials, historically, a strong part of the coalition's brand".
Mr Taylor has acknowledged this was a mistake and vowed to take a package of lower taxes to the next election.
