If you're too old for this, stop acting like a dumb kid.
Mamamoo is anything but overhyped, and it's not me calling them the best vocal group, it was the industry! Not only in Korea btw. Even in America they called them Vocal Queens. Before their debut, Legends like Quincy Jones praised their vocal talent.
Sure, there are other singers whom are better vocalists, even in Korea, but that doesn't mean they couldn't stand a chance against Legendary singers, because they actually competed against Legendary singers, and won, as ROOKIES!
If you don't listen to Mamamoo, why are you even talking? You don't know anything about them, so stop embarrassing yourself and stan your favorite modeling agency.
The fact that you said Mamamoo can't offer anything you could like, yet you like Blackpink, speak volumes. Mamamoo created songs in more than 10 different genres. If you can't find at least 1 or 2 song that you could like, that means you don't like music at all. This isn't even about Mamamoo, it's 100% about you not being a fan of music in general.
I don't need to know you, because what you're saying is enough.