Let them think negatively. Perhaps that only gives them stress thinking of others' lives while we enjoy our day gambling. There are many and very common in a place where the only thing they can do is monitor the lives of their neighbors.
I don't bother myself hearing them. Besides, I know myself that I am different from other gamblers. I gamble responsibly and have never been in trouble. There is nothing to explain to these people because they will not listen to us. Maybe someday they will just realize that they are wrong.
Mate I love what you said, for me as far as am a reasonable and responsible gambler that's understands the dos and don'ts in gambling I think I wouldn't be paying attention to things said by those people that may likely come into the system later, I have always known that Humans in general has different ways they think, since some people has some kind of reasoning that gambling is not a good thing thing just because they feel that every gambler is prone to getting addicted in the process, they generalize things without getting the records straight, I don't get greedy, I don't chase loss, I gamble with what I can let go if anything happens, so at this point I don't care about what anyone says about me in regards to gambling beside I have started gambling online myself for awhile without going to any gambling hall, so any talk as this don't affect me in any way.