Read the history of this stuff, notice how many of them are sexually deviant / non-normative. A lot of their positions is not grounded in objective reality but on personal wish-fulfillment. most of the experts are employed in gender clinics and/or gain rewards and prestige from advocacy groups, so of course their supportive of LGBTQ acceptance.

Im not denying all of their research or theories or whatever, but their is bias just like all fields of inquiry. like people in quaranic or biblical studies think it is more important then it is, sociologist thinking social effects matter more compared to evo psychologist who think biology matter more etc.