M.S.
I am sorry you are going through this, it isn't easy. If he has been kicked out of 3 daycares, then there is something going on. What did they tell you? What did they recommend?
Kids who don't hug or respond when you talk to them and are out of control need help. The professional kind, not the stay at home mom kind unless they have been trained. Have you spoken to your pediatrician? I am surprised that something hasn't been said or brought up before because these are concerning milestones that have been missed.
I would start by talking to your doctor. Then follow his/her lead. It sounds like maybe he is getting too much stimulus and doesn't know what to do with it. So, this could be a Sensory Processing Disorder. Or, it could be more involved like Autism or something similar. I don't want to alarm you, but these are big signs that there is something not neuro-typical.
I wish you the best, and a lot of us on here are in the same or similar boats, so please know that you are not alone!