...you are wrong. BTS don't care if you support only them or more. in the end they get support from both. and love all their fans EQUALLY. BTS listens and supports many groups too...LOL also why do you care? you're becoming brainwashed. and no... liking multiple groups is not a problem in korea, it's just most popular to support one group. I hope you grow and understand what it means to be a fan. because you obviously do not. you're 25 but you sound 12.