It is funny to me though. Two years of NewJeans destroying old records, creating new records, becoming a global force in record time, and showcasing a level of dominance we've never seen from a group not even 2 years old, and certain fandoms (Blinks and Onces) refuse to acknowledge their impact and obvious ascension to power.
For the record, I agree that New Jeans is still the gen leader even right now. But the main reason why people don't accept they're lapping the pack is that the metric where (thus far) they've overly dominated in digital streaming, both in SK and on Spotify. While they have strong album sales and promising touring support (eg Tokyo Dome fancon), there are several other girl groups with similar metrics (Aespa, Ive, Gidle all have strong album sales and promising touring numbers).
NJ's has achieved digitally what none of them have before - namely, charting entire albums, putting multiple songs in top 10s, crazy longevity. It reminds me a lot of IU's digital performance, so I feel qualified to speak on this because I feel like the comparison is similar. Kpop fans are very fickle with digital charting - they won't consider a top group as relevant if they DON'T have the digital charting (see Stray Kids) but as soon as an artist slightly digitally underperforms, kpop fans smell blood in the water and proclaim they're on the decline. Unlike album sales and tours, digital charting is the ONLY metric that cannot be fandom-driven, and it's genuinely impossible for an artist to digitally smash on every single release. IU got plenty of shady comments just earlier this year when her most recent mini-album underperformed (by IU standards) despite the pre-release remaining at 1 for 30 days.
It happened in 2013 when she underperformed with "Red Shoes", then in 2015 when she underperformed with "Twenty-Three", then in 2018 with "Bbibbi" etc etc. Record-setting first 24H ULs but songs didn't remain at 1 for very long and also didn't have the longevity. Every few years there was talk about "IU challengers" - Bol4, Taeyeon's debut, the BP girlies, etc. If an artist is digitally dominant (but not overwhelmingly dominant in fandom-metrics), there will still be eras where they underperform and, yes, people will question their dominance. The only way to convince those people is through consistent performance throughout multiple years, because that's the true rarity in kpop - most artist's peaks last only 2-3 years (Bol4 is a great example - complete digital dominance for 2 years, now toeing irrelevance).
I get it's hard for you because you need people to accept NJ's dominance at all times but this is the problem when your main dominance metric is digital charting.
edit: honestly I'll just say that the biggest boost for kpoppies in proving IU's dominance was actually her sold out seoul stadium concerts in 2022 (and not her thousands of PAKs, 20+ number 1 singles, entire albums that charted, 10+ year career etc) because that is something that no other female artist can do or has done, even if others get viral smash hits the same time as an IU comeback.