This chapter examines the way that feminists have theorized transgenderism, the impact of queer theory, and the development of transgender theory and transgender feminism. It considers also, the way in which transgender activism has sought to silence the feminists who challenge transgenderism. The project of transgender activists is to replace this radical feminist theory, which seeks the abolition of sex role stereotypes, now called gender, with a version of 'feminism' more compatible with their interests. Queer theory and politics inherited the term 'gender' from its usage by feminist theorists. Transgender 'feminism' argues that gender difference and femininity must be protected from the feminists who seek to demolish them. The transgender project of promoting femininity as proper focus of feminism has made considerable inroads into an academic feminism, which has, to a large extent, lost its way and failed to support women and feminist scholarship.