dawnrising said it spot on. We are here for you!
You still seem to think that by doing this it's an ultimatium for him. It's much more healthy to think of this in terms of that you are doing what you need to do for YOU, setting healthy boundaries for yourself. Focusing on you.
Someone steeped into his addiction that much is not likely to change now. I hope he does, maybe it would save his own life, but you cannot control that, nor can you continue to go on as it has been.
Huge hugs.