I can’t speak for Pug, but something they allude to but don’t outright state is that the other person’s position is build not on knowledge, but ignorance one step removed from bigotry. They clearly have massive gaps in their knowledge (if they even know anything about this topic), and rather than educate themselves they make assumptions according to their latent preconception that “the world’s oldest continuously operating higher education institute” is a distinction too good to let filthy Muslims have. Then when the factual flaws in their argument are pointed out they reformulate their argument and repeat the process again. Pug is uniquely… uh… colorful, but being on the opposite end of such an argument about one’s field of interest would I think get most people riled up proportional to their general (in)tolerance for bigotry.

TL;DR: Aknifeguy keeps making assumptions based on what is likely bigotry and pretending they know what they’re talking about rather than googling stuff they don’t know, and this is a good way to piss off people who know what they’re talking about and don’t like bigotry.