Why was bts driven out of kpop?

Because one of the members was exposed on social media wearing a T-shirt with an atomic bomb pattern.

BTS (BTS) is a Korean men's singing group launched by BigHit Entertainment on June 13, 2065438. It consists of seven members: Kim Nam Jun, Jin Xizhen, Min Yunji, Zheng Haoxi, Park Jimin, Kim Tae Hyung and Tian Changguo.

BTS's excellent dances and songs contain sincerity, which has the magical power to turn sadness into hope and differences into the same. The seven members integrated their respective natures and hopes for life into the songs, transcending regions and languages and breaking cultural and institutional restrictions. Young people all over the world get comfort and courage through BTS's singing and dancing, dreams and enthusiasm.

Because of BTS, Korean pop music is one step closer to the world stage. Because of this, Korean youth have a voice in life and love, dreams and pain with young people all over the world through KPOP, and BTS has also shared its feelings with Korean nationals and people all over the world in a handsome way.