What is feminism? A political movement to overthrow male supremacy, according to us radicals. These days, however, young women (and men) are increasingly fed the line from "fun feminists" that it is about individual power, rather than a collective movement.

Caitlin Moran, whose best-selling book has made her into one of the country's best-known fun feminists, is an apologist for porn and wasted an opportunity during a feminist debate on Newsnight to joke about cardigans. The writer Natasha Walter claims that being able to wear trousers and drink beer on her own means sexism is dead, and other "feminist-lite" types can be found blogging nonsense about the need to include men in our movement and not offending the poor dears with mentions of rape and domestic violence.

We need to bring back the radical edge to feminism, and do away with any notion that slutwalking, lap dancing, sex working or Burkha-wearing is liberation for women. If men like a particular brand of feminism, it means it is not working. "Fun feminism" should be consigned to the rubbish bin along with the Lib Dem party.

I am tired of being told by so-called third-wavers that my feminism is fascist, old hat, irrelevant and man hating. It is nothing personal to me; just that feminism is something that has been central to my life since I was a teenager. I do not want to see its radical edge co-opted by over-privileged, self-serving faux feminists.

These "fun feminists", who have little or no idea about the theory or practice of this movement, take advantage of the benefits that radicals have fought long and hard for, whilst contributing nothing. In fact, they are damaging to other women, and are destroying progress won by those of us who do not weep when men disapprove of our views.

So keen are the funbots on not upsetting men, they betray those second wavers who made great sacrifices to break the silence on male violence towards women. Heterosexual women know full well that most men run a mile away from proper, radical feminism, so they chose to spout the type of nonsense about lipstick and burlesque that the boys just love to hear.

It is not enough to call yourself a feminist because you are a strong woman. Thatcher was an enemy to feminism, as is Nadine Dorries. Like other liberation movements, feminism has an ideology and a goal. It is not about personal liberty and freedom, but the emancipation from oppression and tyranny for ALL women, whatever our race or class.

Some younger activists are radical in their approach, such as those who organise the annual Reclaim the Night marches across the UK, but increasingly, so-called feminist blogs are full of articles on how radicals are responsible for creating an image of feminism as being "against men". Did anyone notice white people, who were by definition responsible for the introduction and maintenance of apartheid in South Africa, being placated and excused by black civil rights activists? Do members of the hard-left doff their caps at the ruling classes in the hope that they will "keep them on board"?

During a panel discussion at a feminist conference last year there was a massive kerfuffle when the critic Bidisha dared to suggest that being a feminist is belonging to the "girl's team". Imagine white folk telling black anti-racist activists that their movement is ineffective because white people are not given equal say about strategies for change.

"Fun feminism" isn't feminism at all. It is about the rights of the individual. In the "fun feminist" world, anything goes, no matter how destructive or harmful it may be to the individual or to women as a class.

For heterosexual women, feminism can be a nightmare. Women are the only oppressed group who are expected to love their oppressor. But please stop trying to play nice. Until we overthrow male supremacy and admit that male power is the problem, not radical feminism, nothing will change.

Julie Bindel is a journalist and feminist campaigner. She tweets at @bindelj