Yeah I understand I went through a similar experience, it's so hard to tell because bh planned it all so well. It took me a while to understand it and how it went down. And I still don't fully but I do see some things better now. To answer your question: I personally think that they willingly joined, but I don't think everyone did, I think some members did and others did not and were instead manipulated. I think RM, SUGA, V, JIN joined bc of greed or another reason. But JIMIN, JH, JK seem a bit more in a state that mk ultra would result in. Now here's the thing they no what good and bad is, if they want to end it why don't they stop renewing their contracts? So I honestly think the money and all that got to them at the end they can choose to do what they want, if they really would have wanted to stop, they would have long time ago.
Now this is something that I've been wanting to explain for a long time:
They're really deceiving and I think thats something that tricks a lot of people, like they can seem the most genuine, but they're music vids say other wise "Fake Love" clearly shows that they are fake and don't care about anything but the money. They target people who are seeking love and acceptance. I realized that because now that I look back to 2014, I realize that I was really seeking to feel accepted. And not only that take a look at their fandom, its made up mainly of teenagers who are going through the hard stuff like depression, or sexuality, or problems with family or friends. The occult and BH really know how to manipulate stuff the way they released the "BANGTAN BOMBS" or whatever they're called, to make them seem authentic and to start to present their personas, the way they to those games on vlive. They created different characters for each member so that anyone could be drawn in. All those are tricks that really work bc they make you wonder "How did they sell their souls, they look like such fun genuine people?". But watch their performances, they wear masks symbolizing that its just a character they present to the fandom. Because thats exactly what they've been trained to do and they don't go against it bc why ruin something that is bringing them riches and fame. They want people to feel like they are them, and that they can count on them through their music. THATS ALL BS, wake up people, THEY DONT CARE, they are just puppets and IM SO TIRED of seeing people praising them because they accept everyone and are amazing human beings. That's why their fandom is so strong, they are tricked into thinking seven guys care about them and love them. They distract people from their normal lives, from family, school and most importantly GOD. The devil knows what he's doing, not only does he have kids now but even adults trapped and obsessed with them. And I don't blame people for being obsessed its easy to find comfort and a distraction in them but thats exactly what the occult wants, I honestly wished I would of never gotten introduced to them. It would of saved me a lot of time, it took me so long to detach myself from whatever spell or trick they use to make you so blind to think they are "all" nice, sweet and the most caring people. So if you are trying to cut all ties, cut them all, and don't expect to be over them in a few weeks or even months. Just pray and find other productive things to do.
I attached some screenshots, I thought that performance said a lot, I think the members that are tied up went through a lot of brainwashing/ or they feel trapped. While the members that are untied might have joined because of the "benefits".