Hyperion

You certainly don't. Should we ask a rocket scientist to give us the answer? Very well then, let me put on my scientist glasses and hand you the answer(s) on a silver platter: If you are asking whether relative reality is relatively real, then the answer is yes. If you are asking whether relative reality is absolutely real, then the answer is no. Satisfied?

All of these things exist as concepts, thus they are real. It's just that they don't exist independently from one another / independently from (your) perception. White cannot exist without black, and black cannot exist without white. Does this mean that they aren't real? No it doesn't. It just means that they are relatively real, not absolutely real.

There is no reason, unless you come up with one. Again: Both perspectives can serve as valuable pointers until and unless they are being mistaken for absolute truth. A spiritual pointer is a concept that (ideally) points to that which gives rise to and simultaneously is beyond all concepts. As the old Zen saying goes: Don't mistake the finger that is pointing to the moon for the moon itself.

You, of course. (Relatively speaking.) Why not tell anybody to let go and surrender?

The ultimate answer to your query is absolute truth aka. THIS. Which, of course, cannot be expressed with words.

So I guess it's time to give the old broken record another spin, huh? "There is noone here who can let go and surrender" is a relative perspective. "There is someone here who can let go and surrender" is another relative perspective. Both perspectives are relatively true, and neither is absolutely true. They are two partial aspects of reality, not (the totality of) reality itself. Meaning that both can serve as valid and valuable spiritual pointers unless they are being mistaken for expressions of absolute truth. (There is in fact no such thing as an expression of absolute truth. Whatever can be expressed with words is at best relatively true, but never absolutely true). --- There you go. The broken record has spoken!

Care to hear my response? Or can you already guess what I am going to say?

Thaaaat's the spirit. And also, it isn't.

Of course. Relative reality exists to make the recognition of absolute reality possible. Something exists to make the recognition of nothing possible. Form exists to make the recognition of formlessness possible. The self exists to make the recognition of no self possible. All of these experiences arise together and are dependent on each other for their existence. No contrast = no appearance = no experience of reality. It's as simple as that.

Y'all need to hear this.

A "not you" cannot exist without a "you", just as a "you" cannot exist without a "not you". They are interdependent relative concepts, as all concepts are.

Can a concept exist without the complementary opposite concept? Can the concept of "self" exist without the concept of "no self"? Can the concept of "no self" exist without the concept of "self"? Can there be white without black? Can there be Yin without Yang?

Is that absolutely true?

Exactly. That's why it is called "making sense", not "finding sense".