Caitlyn Jenner's tweet encouraging her followers to "fight discrimination" against the LGBTQ community saw her labelled a "disgrace" and a "hypocrite" due to her politics and previous comments against gay marriage and transgender girls competing in sports.
The transgender reality TV star celebrated Pride Month in the US on Wednesday (NZ time), urging everyone to "honour those who have fought for LGBTQ rights but also be reminded of the challenges we must still overcome".
"We must continue to empower those in the community and fight against all forms of discrimination," she wrote.
Jenner, a long-time Republican who recently announced her bid for Governor of California, was swiftly condemned online, with upset commenters highlighting how some of her stances on LGBTQ issues have themselves been considered discriminatory.
"As you try and discriminate against our LBGTQ youth and ban them from sports - shame on you!" one angry tweet read.
Former Olympic athlete Jenner revealed last month she "opposed" transgender girls competing in female sports at school, telling a TMZ reporter it was "a question of fairness".
Jenner had previously insisted trans athletes should be allowed to compete "as who they really are", leading some commentators to suggest her change of heart was an attempt to appeal to the Republican vote.
The I Am Cait star went on to follow up her comments on Fox News, suggesting there should be a commission created to draw a distinction between "truly trans" girls and "some guy" who hadn't undergone hormone therapy.
"You are anti-trans because it is politically convenient for you," one reply to Jenner's Pride month tweet read. "You don't care about the very community you are a part of."
Meanwhile, another Twitter user told Jenner: "I'm still concerned with your views on same-sex marriage... if you want to empower your community, stand up to your political party."
In a 2015 interview with Ellen DeGeneres, Jenner said she was a "traditionalist" when it came to the subject of gay marriage, telling the talk show host: "I kinda like tradition and it's always been a man and a woman."
Jenner later clarified her comments in a statement that admitted "there was a time when she didn't realise how important it is for gay couples to have the right to get married" but she now believed in it.
Having come out as a transgender woman in 2015, Jenner went on to vote for Donald Trump in the 2016 US election, telling E! News Trump would be "very good for women's issues". She later criticised the president and withdrew her support after he attacked trans people though legislation, including a ban on most transgender people serving in the US military.
According to CNN, Jenner is being unofficially advised on her run for Governor by Trump's former campaign manager Brad Parscale.
Jenner's political ambitions have been revealed as Republican lawmakers increase their efforts to pass laws that impinge on trans rights. Business Insider points out that 28 US states have proposed one or more bills relating to transgender issues, including some that could make it a felony to provide gender-affirming healthcare services for trans children.
"Girl, you ran through every door forced open for you and slammed them shut behind you," another Twitter user wrote to Jenner.
"You're like the worst representation our community could ever have!" wrote another. Sit the f**k down."