I am on the side of the linked blog ('Neither pedophile (“cub”) nor bestiality/zoophilia art are okay, because they normalize sexual abuse.'). Still I can agree with you that we disagree (which doesn't mean that I dislike you for this).

but without giving a reason

The reason comes from the context of the preceding part of the blog, specifically the mention of the Harkness Test and general elaboration about where the ability to give consent of a being ends.