There is a ton of usability, scope, and power difference between the metaprogramming of C++ templates versus the metaprogramming of the Lisp family of languages

There is a ton of usability, scope, and power difference between the metaprogramming of C++ templates versus the metaprogramming of the Lisp family of languages (and Julia), which is what is usually considered as metaprogramming in the practical sense, languages that are arguably designed around metaprogramming as a fundamental feature. Just as assembly language is also turing complete, but there is also a ton of usability difference between it versus C/C++, in favor of C/C++ and with little performance penalty.