"It is therefore especially shocking to have observed an attempt, coming from within the PSF, to pit the well-being and interests of two different excluded groups against each other, as if somehow the interests of members of the LGBTQIA+ community and of Africans are mutually exclusive."

No, members of the LGBTQIA+ community are marginalized, while African optimists that want to organize a conference in Tanzania are just inadequate conference organizers. Discriminatory laws aren't their fault, but it is not a reason to endorse them and waste grant money that can go to a safer, better conference instead.