Do all feminists agree on the concept of society?

Yes and no... Liberal feminists such as de Beauvoir do agree with more radical and socialist feminists like Kate Millet on the existence of the patriarchy. They agree on the general issues: men exploiting women and denying them the opportunities to maximize their freedom and individualism through legal, political and economical factors. However they have disagreements regarding how to overcome it. Liberals prefer to focus on equality of opportunity and education whereas radical feminists believe that a revolution must take place in order to achieve equality. It is also important to think about difference and equality feminists: postmodern or 4th wave feminists like bell hooks believe everyone should take part in the movement whereas Millet would suggest this should be a women's only movement