There is no “inarguable”: there is only a failure of the desire to argue. I wish that would happen in my house more often.
Okay, go ahead and argue with her about taking the 1300 post.
Much good may it do you. (That’s a line I read in a version of “Pinocchio”. Gepetto came across his neighbor lying on the floor. “What are you doing?” — “I’m teaching the alphabet to the ants.” — “Much good may it do you.”)