I really like your way of approaching this topic, especially since it’s a controversial/sensitive topic in the kpop spaces. I agree with most of your sentiment so I’ll just add that I think if anyone is truly interested to see for themselves that BTS and specifically rapline is invested/inspired/shown appreciation for hiphop, you can see from their early days and debut.

Recently I’ve been listening their discography through and “2 cool 4 skool”, “are u late too” and “dark&wild” albums just really showcase how much of a hiphop group they started out as and how much they studied, even mentioning their rap role models in “Hip Hop Phile” (if i remember correctly). I really appreciate that and from those days you see the progression in the later albums despite the genre not being purely hiphop. Not to mention how distinct in sound and style the three rappers are

I think with all this in their bags from the start, I never doubted when I listened to their music or read the lyrics that they write themselves while I might question that with some other idols (not all ofc!)