Robert Jensen, a radical activist and professor in Austin, TX, wrote an article last month on the debate within feminism on transgenderism. His piece clearly presents the disagreements between radical feminists, who view gender as a patriarchy-enforcing social construct to be abolished; and the transgender movement, with a more liberal approach of encouraging individuals to choose their own gender roles without challenging the larger system.
The goal of radical feminism is a world without hierarchy, in which males and females would be free to explore the range of human experiences—especially experiences of love, whether sexual or not—in an egalitarian context.
Nothing in a radical feminist analysis minimizes the social and/or psychological struggles of—nor provides support for violence against—people who identify as transgender or people who do not conform to patriarchal gender norms but do not identify as transgender. Radical feminism is not the cause of those struggles or the source of that violence but rather advocates for an egalitarian society with maximal freedom without violence.
Read the whole article: Some Basic Propositions About Sex, Gender and Patriarchy. You can also listen to Robert Jensen on RAGE Radio: "Community, Collapse, and Despair", on Derrick Jensen's Resistance Radio, and in the video "Talking Radical in a Mainstream World."