My twin and I share two pair of identical running shoes. One pair is green, the other, gray. The shoes are otherwise indistinguishable. I wear the green shoes exclusively. I have won many races with them, and I consider them lucky.
My twin wears either pair. He cannot tell the difference between the two sets because he is color blind. He runs just as well while wearing the green shoes as he does while wearing the gray shoes.
I flounder in the gray shoes. He can beat me every time if we trade colors, because the duller pair does not recall soaring victories. The gray shoes mean nothing to me.
Though the difference between the shoes is entirely subjective, it is nonetheless real and it is true that the greenness of the shoes means something, even if no one knows it but me.
Now, you can say that I am silly for evaluating the shoes by color. You can say that I’m doing it wrong (if you have a solid alternative to present). But you can’t say that a subjective evaluation, with attendant meaning and minimal truth (and really, what else is there?) inherently fails and is not real necessarily.
Well, I guess you can persist in insisting that subjective evaluations are not real, if you want to branch off into a dispute about what makes something real…