Is the only field OP didn't mention business, accounting or finance?
I'm not sure how to respond to him because he is really all over the place with his thoughts. But I think he wants reassurance that Law School isn't as risky as it seems to be in this economy - in the fact that finding any job seems to be a challenge for many people. If you don't go into law (or any profession) with a reasonable expectation of the potential job market you are just fooling yourself. If you can do it without any debt, why not go for law? You seem to have talked yourself out of everything else and you seem to really enjoy going to school and taking tests. Law school could be a great time for you - but not if you are going to put yourself in a financial hole you can't dig yourself out of.
I agree there is no point in going to medical school if you don't want to be a doctor, same for dentist, etc. Just because those fields may or may not be a better long term investment than law, if you hate hospitals (for example) don't force yourself to be in them for a few years of training.
If your real goal is to get out of Canada and live somewhere warm...hmm, honestly - won't getting a job in the US be harder if you aren't a citizen or LPR? I know it can be done, but that will limit your job prospects even more.