Blaire White
Having similar connotations to the phrase Uncle Tom, but specifically for trans folk. A Blaire White is a trans person, usually truscum, conservative or some thick, viscous mixture of the two who cannot stand the idea of nonbinary and GNC trans folk being seen equally as valid as them, and actively works towards the invalidation and erasure of the aforementioned groups in an effort to be seen as "more valid" by a group who only views them as a token tran who agrees with their reductive, regressive and hateful worldview.
1: Did you hear about Becky? She refused to use Kayden's new name AND pronouns!

2: Ugh, she's such a Blaire White