Agreed. The really effective tactics are 1. telling everyone that their critics are right wing bigots, thus isolating us and our ideas from our likeliest allies. 2. associating their movement with gay rights by analogy so that progressives will accept it without looking more closely 3. redefining language and demonstrating so much outrage when people disagree or use different language that many well intentioned people hesitate to say anything at all.

Logically the twaw position is incredibly weak, though, because at the core is equivocation between two terms: 1. woman (female person) and 2. woman (personal identification as a female person despite lacking the key qualification).