How would those "alternative programming languages" you propose have been created if people followed your "advice"?
We'd still be sending patches to C and C++ or perhaps Algol?
>What is the primary reason to create a new programming language?
1) Because you feel like it and you don't need to have approval for anybody to do so.
2) Because you want to explore some particular syntax/semantics combination other languages don't offer.
3) As a training exercise.
4) To cover some very specific needs you have, and don't like how other languages do it.
5) To introduce some new ideas into PL design, which might or might not be adopted by users or by a more mainstream language.