-
You previously said avoidance and evasion are synonyms. That couldn't be further from the truth. One practice is legal. One isn't. They are by definition not synonymous.
The point you are making now is an entirely different one and concerns the question of when legal avoidance arrangements become immoral. That is a question to which everyone will have a different answer. The problem Cameron has is that he has publically condemned the exact avoidance practices his family have been involved in and that he has profited from.
That's simply not true. Having an ISA is tax avoidance.