My argument is that people who claim "writing Python is easier" usually ignore that it's writing buggy/throwaway code in Python that is actually easier (aka "look, I can write bugs fast"). Writing large, maintainable and bug-free code in Python is not easier than in other languages -- it's arguably harder, but since that's debatable, I won't argue it here.
Even a "perfect" language is faulty if the barriers between its current state and mass adoption are insurmountable.
Completely reform education in this country to make purer languages like Haskell more palatable for younger generations than, say, PHP, and I'll totally be wrong in 50 or so years.
I'm arguing that "Python is easier" is false, simple as that.
- Beyond toy examples, writing Python isn't easier. Writing reliable, easy to maintain, bug-free Python programs is just as difficult, and your average person won't be able to do it right off the bat.
- You don't need to really know what a monad is in order to write Haskell as a beginner; that's a red herring.
If you want to argue that it's easier to write toy examples in Python, without regard for good programming practices, then... it'd still be debatable: if I remember correctly, some years ago there was a post here about someone teaching Haskell to highschoolers, to great success. They found it fun and easy.