How to get my organs

Dear Government of Ontario:

So you want my organs. Great, I want to give them to you! Here's a law you can pass to make sure that happens:

If you have clear consent from the prospective donor, don't require consent from the next of kin.

I have a health card, driver's licence, donor card and will all indicating that I want my organs donated. I also have some relatives who are kind of irrationally uncomfortable with organ donation and cannot necessarily be trusted to dispassionately carry out my wishes in their time of grief. Depending on the circumstances, these relatives may end up being my next of kin when I die.

Why give them the chance to veto my wishes to the detriment of the greater good? Why put some doctor in the position of having to talk them out of their irrational grief-fuelled preferences in order to carry out my wishes and serve the greater good?

There's going to be a lot of public opposition to presumed consent. I doubt there's be nearly as much public opposition to preventing people from overriding their loved-ones' clearly set out wishes.