The same would be true for any other activity: video games, television, gardening - any problem there is not due to the activity. A person who is being affected negatively by these things may need psychiatric help. The products involved don't need to be made out as the villain.
Do you think gaming mechanics actively designed and honed over a period of years to be as addictive and hard to quit as possible, offering incentives to wavering players and decreasing their gains once they are hooked, is 'fair' commercial activity? In the full knowledge (and indeed the reason for its existence) that such a model is particularly problematic for those with an addictive personality? Seems like the villain to me.
The issue IS the activity, specifically the aspect of it that stokes the desire to keep playing regardless of cost in time or money. Gardening, television and a fair chunk of the games industry don't do that, its specifically that aspect of some gambling models, and the games that ape it, that make it 'villainous' to me, not the other aspects of either your industry or computer games as a whole that are largely entertaining and fun.
Hiding the issue with those particular mechanics behind the (completely true statement) 'games/gambling is fun for most people!', which then allows you to compare it to other harmless hobbies, is sidestepping the issue with the particular 'addictive mechanics carefully researched, honed and employed for the sake of being addictive' being criticised.
Gaming is a hobby, gardening is a hobby. Gaming contains a number of addictive, monetised mechanics in some games that are designed to be as exploitative and raise as much money as possible as quickly as possible by exploiting known weaknesses in a small number of people. Gardening doesn't.
I suppose at this point we could compare to any longrunning industry using psychology- advertising and online gambling deliberately exploit people's desires and association with fun for commercial means too, and there's largely rules concerning what you can and can't do with it. I expect gaming to eventually follow suit, along with pachinko machines, as at the moment they are basically online gambling under a friendlier skin with less regulation.