See here, noting the blue highlighting after There is no known formally constituted club so named.. Hopefully this isn't too difficult to understand now that I have provided further clarification.

Please read and familiarise yourself with Wikipedia:Manual of Style#Article titles. You have completely missed the mark on providing any cogent reason for "Mile High Club" should be the appropriate capitalisation. Besides that, if it were the appropriate capitalisation, you have failed to rationalise why the page has not been moved to ":Mile High Club" (or "Mile-High Club") as would be expected and appropriate. ~~~~