Lake I know it hurts to hear your child talk to you like that. Keep in in your heart that it isn't your son, it's the addiction talking. While my kids have never said that, my ex ah did.
They don't hate us. The person they hate the most is themselves. They hate what they've become and they hate that they can't seem to stop.
It's a long hard road to recovery, but people do find that road.
It's a good thing you're not afraid to call 911 either. Addicts and alcoholics are unpredictable and can do anything. I hope it doesn't come to that.
Take care.