Personally, I understand the concept of being a solo stan. BUT, I do think there is a fine line between solo stans and people who think their favorite in the group is the best and everyone else sucks.
For instance, I don't stand AB6IX but I've been a hUUUge Daehwi fan ever since I saw him in Wanna one and performing 'Heroine' with Sunmi and Seulgi. He's a very talented person and always caught my attention. However, I can't the same about the rest of the group haha. I love their songs though and they have soo much potential in my opinion but it was kinda sad how the leader left and I find it hard for me to bring myself to stan them. (no hate towards them idk but I don't feel that connection I feel with other groups I stan)