Kellie-Jay Keen-Minshull (AKA Posie Parker) is a British anti-trans activist best known for her t-shirts and stickers with the slogan “adult human female”. Keen-Minshull is a leading voice in the antitrans movement in the UK and overseas.

She has increasingly found support from and an overlap in views with the far right, which has also increasingly focused on trans people in recent years. Keen-Minshull has posted anti-Muslim tweets and expressed support for Tommy Robinson. She has been praised by the far right for a number of years and collaborated with far-right social media influencers. She has appeared on the livestreams of conspiracy theorist Richie Allen’s channel twice and been interviewed by Laurence Fox, and also frequently appears on GB News.

Far-right activists have also supported her at her rallies. In September 2022, an event hosted by KeenMinshull in Brighton was streamed by Hearts of Oak. Members of the Independent Nationalist Network and Alpha Team Assemble also attended.

Keen-Minshull held a demonstration in Newcastle in January where a speaker named Lisa Morgan referenced Adolf Hitler’s term “the big lie”, drawing a parallel to those supporting trans rights today. Hitler used the term in Mein Kampf to agitate against European Jews.

Keen-Minshull also organises demonstrations overseas. In March, a group of nazis from the National Socialist Network, led by Thomas Sewell, attended one of her events in Melbourne, Australia.