If it was you, what would you do knowing too well that people who gambles are often seen as useless people and irresponsible people due to what some fellas has presented themselves into while gambling without at least showing any sign of responsibleness.
If you want to avoid conflict, the best thing to do is just ignore them. Whatever explaination you do to them, it won't change their perspective in gambling if they see it as a bad habit. As long as you know that you're gambling responsibly and it doesn't ruin your life in any way then continue what makes you happy.
Also, What do you think can be done to see gamblers as a responsible people in our society?
As long as there are people getting addicted in gambling, it's difficult to remove the stereotype of gamblers being seen as irresponsible with their life. If you don't want to see people think of you that way, it's better to just gamble online. People don't realize that gambling is just the same with other hobbies like drinking or playing video games
. It, it can cause harm to a person if it's done intensively.