This is NOT going to work, You alone can do nothing.
There is NO way, an indie, or a Game firm, can afford to NOT make as much money as their competitor in the industry is making.
1) Margins and discovery is difficult in this industry.
2) If you are a public company, you will face management and market pressure to improve your numbers which means going ahead and making a skinner box.
This is straight up a case for legal frameworks and avenues for legal recourse to be made available.
So no - you wont manage it on your own. Its not possible.
You WILL manage it by connecting with other game devs, writers, reviewers, indies, game houses, parents, programmers - especially people who get why this is an issue (as opposed to the ones who are happy with the status quo)
I know that there is at least one other Game dev who recently spoke out against this (<5 months ago).
Also consider that NOT having addiction boxes as your competition means the hooks and attention grabbers in gamers are shallower. This both reduces the size of the population.
You are definitely not alone. This is precisely what needs collective effort at an international scale. Farmville/candy crush is as effective as it is in California, as it is in Cochin, or Trindiad.
Frankly, I wouldn't be damned surprised if eventually a law firm does catch on, and then targets the entire industry.