Python and Java do not have any similar constructs

syntax-rules refers specifically to Racket macros.

Since macros are a very important part of Racket, complaining that a friendly introduction mentions them is [insert non-friendly characterization].

C, python, java, Fortran, ruby, Common Lisp, Haskell, go, zig (I think), forth, swift, cobol, pretty much any language that doesn’t directly descent from Scheme.