You're welcome to that opinion, but don't pretend that "addiction is a public health issue, gambling addicts have high suicide rates, and many profit from others' addictions" are subjective.
at the same time, it's really not cool for billions of dollars to be spent on research of how to best influence susceptible people (who would otherwise not piss it all away,) to piss all their money away.
ban the predatory advertising and maximally addictive interfaces and most people will be happy. you can still piss your money away if you want to. but it really shouldn't be one poor sap with an addiction vs. a trillion dollar industry trying to exploit that addiction.
Intellectually honest answers only
But this is more about the companies preying on addiction, incentivizing it.
Hi, we live in a society. People who bankrupt themselves out of whatever money they have earned and become a burden to the society at large via homelessness/welfare/crime. Which is also the same case for hard drugs (traditionally this was originally a problem with opiates). I personally do not care if you decide you want to kill yourself with heroin, but I do care as soon as our taxes are used to deal with you as a side-effect.
So making reasonable laws that curtail some of the worst things you can piss your money away on to curb crime/homelessness/welfare/er-bill-delenquency expenditures seems like a wise decision.
Libertarian thinking tries to ignore these side effects but they are real.
isn't this already the case with a lot of things that carry less negative stigma? bankrupcty, limited liability, extreme sports (base jumping, rock climbing, etc), financial risk taking, health choices, bailouts are more socially accepted, but they also risk pushing costs onto the public upon failure.