Behaviour and anger is pain, he is in pain - potentially using drugs as a coping strategy*
I agree that it sounds like he is in huge amounts of pain. He must feel really rejected by his Father. This is surely underpinning his behaviour, at least in part. It’s well known from children who are adopted, that even those who seem to have adapted really well to adoption, often go off the rails in the teenage years, and this is related to all the neural rewiring going on in their brains.
Rejecting him by throwing him out is likely to make his pain and anger and behaviour worse. As well as making him even more vulnerable to those who want to exploit him.
I agree wholeheartedly with PP who advises doubling down on love and connection. I have really found this works with my boys. He may be on edge and resistant and suspicious at first, even lash out ( my eldest does) but it’s the thing that actually works with mine, albeit they younger.
Also yes to apprenticeships. Again, research I’ve read shows this really helps young men with challenging backgrounds. The one to one connection with a supportive, mentoring older male really seems to work for this cohort.
I do really feel for you OP. It’s a nightmarish situation to be in. It’s crap that none of the services you have been in touch with have helped. I’ve heard before that the police are crap with these situations. I hope you find something that does help you all.
To PP who asked about the training course, I don’t know what it’s called, but it was part of an employment support programme which paid for short courses to help unemployed people find something they wanted to pursue as a career/job.
These employment programmes tend to be run as short term projects of a few years and are then replaced by new short term employment projects ( it’s a an enormously inefficient system) . Some of these employment programme are really good. The best not only give you a mentor and pay for training, but will also do things like pay for equipment you need for a job, or pay for things people setting up their own business need.
I did like the one I described above though, as so many people just don’t know what they want to do, and that programme helped with that.