Honestly fuck everything about that comment but especially fuck how this person seems to think that Egyptian hieroglyphics were in any conceivable way a "primitive" writing system, as opposed to a writing system so multifaceted and complicated it took the literal Rosetta Stone as well as the comparative method with Coptic and Proto-Afro-Asiatic to decipher it and understand its inner workings.
For that matter fuck that this person thinks that cave paintings are a "primitive" art form. It's like, oh wow imagine using the bumps in cave walls to create depth and the flicker of torchlight to create the illusion of animation. Imagine painstakingly manufacturing the paint used. Imagine coordinating a community effort to help document and illustrate its own oral history using iconography that we can only theorize about. Couldn't be me!