Slop.

The only thing I could find that wasn't some right wing blog accusing him of being a groomer, which I ignored because the "groomer" term from the right seems always disingenuous:

https://pmc.ncbi.nlm.nih.gov/articles/PMC11545205/

Walker’s interview was conducted by Prostasia’s then-Director of Communications, Noah Berlatsky, who has drawn criticism for describing child trafficking as a “moral panic,” referring to sexually exploited children as “young people trading sex” and insisting that police, not child sex offenders, are the main threats faced by sexually exploited children (Emmons, 2021; Wright, 2018). Despite its origins and association with pro-pedophile activism, “minor attracted persons” is a term that continues to surface in scholarly and policy discourse, resulting in media and public backlash (Dearden, 2023). It is therefore timely to consider how this terminology is being deployed in scholarly work.

Seems to have been a director of this org at some point? https://prostasia.org/

I don't really know, can't find a smoking gun but those are some extremely hot takes if accurate.