I am not sure I necessarily agree with that. It matters what means of extending the language itself the language provides and thereby enables the users of the l

I am not sure I necessarily agree with that. It matters what means of extending the language itself the language provides and thereby enables the users of the language to add to it, in form of libraries, that don't have to be part of the standard distribution of the language, but can still be reached for by anyone who wants to select them. Languages with good macro systems have the upper hand in that regard.