What you said is very true. If someone is already addicted, they cannot get rid of that addiction. Especially clear is gambling that will be done, because gambling will bring emotions that are carried away, and it is difficult to let go of the emotions that exist, so that it becomes addictive.
I agree that addiction is a health disorder that is certainly very dangerous when you fall into it, and getting rid of it again is certainly not easy to do.
The reason why gambling addiction is very bad is because it is intrinsic and do not easily noticed by people. It is a behavior, and stopping it is difficult because it was developed gradually and must be overcome gradually.
Gambling addiction can be more dangerous than substance abuse because family and friends can easily trace a sudden change in behavior to substance abuse and try to intervene immediately to control the situation.
But, gambling addiction is different because the gambler may not show signs of addiction right away, and when it does, the gambler must have lost a lot of things both material, finance and human, particularly relationships and friendships.