And why does it have so many fans and views? I don't think I know anyone who listens to it and the Americans that apparently do I highly doubt they understand Korean.
It's really fucking weird. And some of it even seems directed towards American viewers.
A Japanese woman I know really hates this, since Japanese boy bands aren't much different and they've been a thing for decades. (like SMAP, Arashi) She would've loved for them to break into the US market. But Koreans got better at copying creative ideas and perfected how to sell them to the West.
Looks at US and Korea
I think your friend might’ve dodged a bullet, even if she hates it. Popularity is rarely a blessing.