Hello Bed, Welcome to SR!
It is so hard to see someone who so desperately needs help, but won't take the steps to get it. My stepson used to say similar things. "Everyone says they want to help me but won't do anything!" Well, help to my stepson at that time was: pay for his apartment, pay for his phone, pay for his truck, provide him with spending money, and never, ever talk to him about his drinking or expect him to give it up.
We were not willing to do that.
My stepson is now has brain damage from his drinking. He was found unconscious in the city in which he lived and was brought to the hospital as a John Doe. He now lives in a nursing facility.
Could we have prevented this? If we literally held him prisoner, perhaps. The sad and tragic truth is that it would only have postponed the inevitable for him. That's how determined and self-destructive he had become.
Keep encouraging him to seek help where he is, and prayers are powerful things. When he is really, truly ready for help--you will know. His actions will match his words.