Bias= don't love all members equally?

Whenever I find a group and I end up stanning the group I ALWAYS end up having a bias, one member(ex. Baekhyun from Exo, Stray Kids Hyunjin, Seventeen Vernon, E.U Everglow) and I've seen quite a few, shaming fans who have a bias saying "you don't love them all if you have a favorite" "you're a solo stan if you have a bias", in my opinion saying you have a bias/favorite member that's not the same as you saying you only love your bias and not the rest of the group. I feel like it's pretty normal to have a "favorite".

I'm curious what are you guys opinions on this?

Edit: I really quick wanna mention cuz I see one person being confused by my title, I added "?" To indicate its something I was told not my opinion on this. Also I agree that it's totally fine to be a solo stan as long as you don't bash the other members, there's no harm in you stanning one person in a group as long as you're cool with the rest. And lastly I also agree it's normal and fine to like one member more as long as again, you're being cool with the rest of the group.