Trying to apply your personal stylish influence to Java, or (worse) to Python (which BTW is a wonderful language) IMHO just won't make sense...

This is pretty much flamebait. Python list-comprehensions, generators, and first-class functions make it very expressive. Now try to implement FP in Java and you are stuck with Anonymous Inner Classes to simulate Functors, which is infinitely worse than Perl/Python. You clearly haven't delved very deep into either of these too. While Python supports limited ways of rewriting the language, it is VERY expressive, and only a small notch down from Ruby.