The world right now is struggling with boundaries. What justifies a boundary if we are all part of the same human race? The truth is this question is an old question. It was brought up originally by Korach when he challenged Moses and Aaron's leadership. He asked them, 'aren't we all holy?' Why are you creating a hierarchy, a type of boundary between us? And ultimately, this really relates to a more fundamental question overall- does G-d have any boundaries?

The answer to this question, and all difficult questions is that both sides are correct. G-d is, from an objective perspective, everywhere at the same level. However, with respect to our perceptions of it, this is not the case. We feel different at the Kotel and treat it differently. This is positive as it promotes internal awareness that places are not subjectively equal and makes us think about where we are and its significance. If we lived in a world we treated completely equal the necessity for awareness and thought would go out the window.
This also manifests in the correct vision for a peaceful world. Is the best vision for peace the erasure of boundaries and to turn a blind eye to perceived differences? Or, is the best vision for all to embrace their differences and realize that within difference comes a special purpose and so long as my purpose doesn't interfere with your purpose we can establish peace together? The Torah's answer is the latter. For now, the vision of life we want is not sameness but that each person should have a unique role. That creates a richer peace and one that is achieved through true thinking about what one's place is in the world. So are we all holy? Of course. But that doesn't mean we are all the same and need to have the same role.