It's entirely possible to have the ability but not the desire to read a wall of text.
Not reading a wall of text doesn't reasonably preclude someone from disputing a claim unrelated to the content of that text, it's odd that you'd think that.
Complicit probably isn't the right word, but to claim there's no link at all is factually incorrect.
The fact that a proportion of the money in rowling's hands goes directly into funding anti-trans efforts isn't in dispute.
She's the first in line to back up that claim.
If your enjoyment of the media isn't soured by that, thats your call, everybody does what they can live with.