It just implies that looking at the candidates the biggest and most important difference you see is that one is a woman.

Like, it’s great that you did vote for that woman as she also happens to be in favour of women having rights, lgbtq+ people having rights, doesn’t want mass deportions, still wants there to be elections in the future and a painfully long list of stark differences like that. It’s just impressive that none of that mattered to you, or that you are unaware of it