What do you mean they can’t control it? They could stop gambling tomorrow by disabling trading and disabling case openings. Valve already appear to be preparing for the latter to happen via regulation with the “Armory” feature in CS, which follows Fortnite & other major AAA titles.
(Oh, talking about Valve electing to engage in scummy behaviour, the “X-ray” feature is a classic example of them deliberately subverting regulation against loot boxes.)
If you want to bring up the “let the free market be the free market” angle, I’d at least be amenable to it.
But pretending as if they’re innocent passengers, and that they have no idea what is going on it ludicrous. Don’t baby a billion dollar company.
(I have skin the game too. If Valve blocked trading, I’d lose $400 worth of value in my skins. I’d still rather not support gambling, especially the type that is so incredibly unregulated.)