It’s not a win or lose scenario, looking at it that way is your mistake. If you make the point that Robin TOLD Luffy she wanted to join the crew instead of ASKING as if there’s a discernible difference, you’re grasping at straws to begin with, since the intent either way is to ride on his ship and he would have said yes regardless because he thought she was a good person. If you don’t like the way your argument is being perceived, make a better one, but taking your ball and going home doesn’t mean either of us is right or wrong.