If you want to have a reasonable discussion about politics and which laws to pass, argue about the actual laws.
No, the relevant discussion is about the consequences of passing the laws, and if the consequence is that the judiciary will interpret it to mean something different from what it says, that's relevant to the discussion.
Note: part of the misunderstanding here may be that you will in a civil law country whereas the US is a common law country, and thus the judiciary here has a lot more power to interpret (or even make up) laws.
Over at Scott Adams' Blog you can find a very fine example of using the 'Rationality Engine' to solve the social problem of assisted dying.