The gambler is at fault because it was their choice to play with their luck and they did not stop themselves unlike other who moved on. If they chance their attitude to gambling they might be able to come out of this rabbit hole, pay back their debts and be proud of their conversion to a new human.
Support from family and friends is important, but how they provide it is also important. Sometimes its not possible and the gambler has to cope up on their own.
If an addicted gambling himself will try to change for the better, we should set aside that criticism as it will not help at all. Besides, this gambler if he will be able to successfully cure his gambling addiction, he will not be a problem in the community especially with his family. The problem with non supportive family is they are the ones that are good in criticizing gambling addicts, instead of helping since he is part of the family.
Actually it's not easy to get out from addiction, but it will only be easier if the family member are supportive, so that's the key.
For the problem of criticizing or ridiculing, in my opinion, this is more likely to be done by others who are not related to the gambler, such as maybe some friends in the neighborhood or hangout who usually prefer to say or say something that is not based on any consideration that leads to ridicule or criticism.
That is why sometimes it's hard to get out from addiction because instead of getting a help, you are getting criticized like you have no chance to correct your mistakes. The closest people to understand you is your family as they know you better, but there are still those who are from the family, not so close that might criticize. As a gambler, we have to accept criticism as that is one of the consequences of our wrong action, if we have prevented ourselves from getting addicted, then it could have not happen.
Everyone makes mistake, right? So there's no need to push that burden more to ourselves, instead, let us forgive ourselves and move on to what makes us a better person. After all, gambling is just an entertainment, it's us who only created a problem, but when the time comes that we will be able to control ourselves and be responsible, we can fully enjoy the essense of gambling.