it's ok to be bi/pan with a preference for women just do not call yourself a bi lesbian!! it's harmful because it reinforces the idea that lesbians can be attracted to men and that they just need to "find the right guy" or whatever

it's ok to feel a connection to the lesbian community in a way because of this as well, but it's not ok to steal their labels in a way that could be harmful or misleading. it's not a problem with your identity it's a problem with the way you're describing and labeling it