Comment by GaryBluto

If you make a claim based on the supposed existence of something, be prepared to back the existence of said thing up. It's not "sealioning"[1][2] to want evidence for an extraordinary claim.

[1] Sealioning is an example of an blanket phrase that can rarely be applied correctly but more often that not is used by anti-intellectuals who have no other method to refute a statement or inquiry to their line of thought. Other examples being "whataboutism" (for the act of pointing out hypocrisy) and "slippery slope fallacy" (which is used to ridicule logical cause and effect statements)

[2] I find it humorous that the example given is of somebody prejudiced against an entire species for no logical reason (and who wants said species eradicated), who then refuses to justify it to the creature they are prejudiced against.

It almost feels as if the comic was originally written to justify racism and the author then realised how unpopular that would be. (The author attempts to refute this in an addendum but ends up using many words to say nothing, instead refuting a criticism of the character's visual design.)