Why Kpop fans are so sensitive about VS threads?

This has always been the case with kpop fans in general. We are so sensitive and always have this "holier than thou" and "here we go again we dont care huurr duurr" attitude when someone brings up a discussion about comparing groups achievements, revenue, success etc etc etc. Most people say that all the time and then proceed to being butthurt and bitter when they failed to bring evidences that their favourite is superior in certain aspects than the others etc. Like can we all just chill like many other online communities? Look at anime fandoms in general, they always come out with VS battle all the time such as "iTACHI VS PAIN" or "SAITAMA VS GOKU' and such

Like just chill and have a debate about it, take the L if you can't support your arguments and leave