The thing is I'm not holding Messi responsible for the way Barca look right now, I've never implied that. Of course it's not his fault but the simple reality is it's the setup he has to operate within for the near future - That will affect his ability to win major honours domestically, in Europe and Internationally.
Like I said Trophies are the point of the football. Success and silverware is how Messi and Ronaldo define themselves essentially. It's how their respective supporters justify their supremacy in world football. I doubt Messi himself wanted to spend his later years guiding Barca through a fruitless period of rebuilding.