This is an excerpt. The entire letter is linked below.
"This covenantal sign, the rainbow, is claimed in our time as the symbol of a movement that is at once political and cultural. We
recognise all that is noble in this movement’s aspirations. In so far as these speak of the dignity of all human beings and of their longing to be seen, we share them. The Church condemns unjust discrimination of any kind, also on the basis of gender or orientation. We declare dissent, however, when the movement puts forward a view of human nature that abstracts from the embodied integrity of personhood, as if physical gender were accidental. And we protest when such a view is imposed on children as if it were not a daring hypothesis but a proven truth, imposed on minors as a heavy burden of self-determination for which they are not ready. It is curious: our intensely body-conscious society in fact takes the body lightly, refusing to see it as significant of identity, supposing that the only selfhood of consequence is the one produced by subjective self-perception, as we construct ourselves in our own image."