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But the social activist still believe Hillary will win this year's election race

Fonda said U.S. has a 'toxic masculinity' which 'needs to be addressed'

Jane Fonda has warned 'there will be violence' if Hillary Clinton is elected president in November.

The actress and social activist warned that the former Secretary of State would face backlash from the nation's 'toxic masculinity' if she were to become the first female President of the United States.

'Every time women move forward, there is going to be problems,' Fonda said at the Tribeca Film Festival in lower Manhattan, The Blaze reports.

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Jane Fonda (left) has warned 'there will be violence' if Hillary Clinton (right) is elected to become president in November

'One of the things we have to do is help men understand why they are so threatened, and change the way we view masculinity. We have a toxic masculinity and that's what needs to be addressed.'

The two-time Academy Award winner became, who is a prominent supporter of feminist causes, insists Clinton will win the next election.

'I think that deep down, people feel [Clinton] can hit the ground running, even if she may not be the perfect candidate for a lot of people,' she said. 'She's had the experience. The world right now is so complicated — she has the background to deal with all the complications.'

Fonda is famed for her political activism as much as her acting career.

In 1972, she visited Hanoi, Vietnam, where she spoke out against the U.S. military. She famously shocked the American public by straddling a Viet Cong anti-aircraft gun during the Vietnam War in protest against the conflict.

Fonda is famed for her political activism as much as her acting career (pictured at a peace movement meeting for Vietnam, in Central Park)

In 1972, she visited Hanoi, Vietnam, where she spoke out against the U.S. military. She famously shocked the American public by straddling a Viet Cong anti-aircraft gun during the Vietnam War in protest against the conflict

She wrote in her 2005 autobiography that she had been tricked into that gesture and has since apologized for her radical stance.

The daughter of legendary star Henry Fonda and his socialite wife Frances – a distant relative of Henry VIII's third wife Jane Seymour, after whom Jane was named – she became a noted actress rising to fame in movies such as Period of Adjustment and Barbarella.

She retired from acting in the early 1990s but mounted a comeback with the 2005 comedy Monster-in-Law in which she starred beside Jennifer Lopez.

Fonda discussed her career break at the Tribecca Film Festival event, saying that if actors 'hate ourselves, it really hard to act well.'

She is currently starring in TV series Grace And Frankie, on Netflix, with Lily Tomlin.

Grace and Frankie follows Jane's character Grace, a retired cosmetics mogul, and Lily's Frankie, a hippie art teacher, whose husbands, Robert (Martin Sheen) and Sol (Sam Waterston), are successful divorce lawyers in San Diego.

Grace and Frankie's lives are turned upside down when Robert and Sol announce that they are in love with each other and are leaving their wives, with the women forced to live together as they navigate the next chapter of their lives.

The 78-year-old said she had undergone therapy and hired an acting coach before she began her new role.

During the Tribeca panel for the series Jane and Lily declared they were keen to abolish the label 'women of a certain age'.

Fonda, pictured at the 'The First Monday In May' world premiere at Tribeca Film Festival opening night at John Zuccotti Theater at BMCC Tribeca Performing Arts Center on April 13, to promote the second series of Grace And Frankie

'I hate the phrase,' Jane told the audience. 'Just say how old we are. I'm 78,' the Oscar-winning actress continued.

The stars also admitted though that they've learned how to embrace aging, even in image-conscious Hollywood.

'When you're looking at it from the outside, it's terrifying,' Jane admitted. 'But when you're smack dab in the middle, it's not scary. In fact, it's better.'

Married three times – to director Roger Vadim from 1965-1973, to politician Tom Hayden from 1973-1990, and to media tycoon Ted Turner from 1991-2001 – she's sworn off tying the knot again, although for the past six years she's been in a relationship with music producer Richard Perry.

'I will never, ever get married again,' she has said. 'At my age, why would I? To keep love alive? After three marriages, I'm obviously not gifted at that!'

But she said that after many years of searching, she had finally found what she was looking for.

'It took me 72 years to realize kindness is a good thing to look for [in a partner],' she said. 'Nobody ever told me that. I didn't have that in relationships before. Kindness and forgiveness is a new thing. I think if I met it sooner, I would have fled.'