1/ I was pleased to see a prominent transactivist acknowledge recently that the slogan "trans women are women" leads to dogmatism rather than nuanced discussion, and interested by her claim that the slogan became "a thing" in 2016. Is that right? I ran an ngram. 
2/ First use according to this dates from 2000, with an increase in usage from around 2012. The earliest book reference using the phrase that I could find is from 2006. But is this really the first key reference? Let me know in comments if you know an earlier one.
3/ Here's one from 2011, when the phrase is starting to take off.
4/ And one from 2012. "Out from the Shadows: Analytical Feminist Contributions to Traditional Philosophy" published by OUP.
5/ The earliest online use of "Trans women are women" according to the ngram search is from a US church in 2000
7/ But what or who really kicked this slogan off? This seems like an important part of the history of this political movement, regardless of where you stand on the issues. Perhaps the hivemind can help? I'd also love to know when "no debate" started to be used in transactivism.
