Valve runs a couple of online casinos that target children specifically
I’m interested in which of their games that have loot crates you think are targeted specifically at children? Basically all of their games, but especially their games with loot crates, tend to be targeted towards adults. Hell, TF2 came out in 2007, which is 18 years ago, so no one who is a child today was even alive when it came out. It’s mostly elder to mid-Millennials. You can dislike loot boxes (I do), but don’t try to paint Valve like they’re Roblox or Epic Games.
everyone else missed the moment to start competing and Valve gained monopoly unopposed.
Other platforms were around before Steam was fully dominant, but they tended to be focused on the creators’ first-party games, and excluded other publishers and titles from using their platform. Desura and Central/Impulse both had decently large user bases. Stardock Central actually preceded Steam’s release, but was overtaken because Stardock was mostly just using it for its own games, but also billing the service more as a way to unify your physical and digital libraries, and to provide patches and whatnot, whereas Steam went all-in on digital-only.
because it’s impossible to move people who amassed content libraries over the years
Yes, but this is sadly just the natural reality of digital sales. Because you are buying a license, it’s not trivial from a company’s perspective to make those portable, and the company you’re moving the license to is then having to host your content without ever actually receiving the money for it, which isn’t super appealing. GOG actually tried this for a while(GOG Connect), where you could essentially redeem your Steam games to your GOG account, but they realized it wasn’t worth it (especially since there isn’t game parity on the 2, so most people have to keep Steam anyways).
You’re ignoring all of the warning signs because they didn’t screw you over yet.
I must have missed where I said Valve would never do something bad? But yes, I don’t believe in condemning someone for what they might do in the future, preemptively. If and when Valve goes darkside (probably when Gabe dies, and it ends up under new management), they should be condemned. Acting as though they’re bad just because they’re dominant in the market is silly, though; they didn’t get there through anti-competitive business practices, they got there through others failing to do better.
Sure, but whether Valve fits the definition is debatable. Being highly dominant does not automatically make something a monopoly. At best you could call it an imperfect monopoly/ imperfect competition, because substitutes absolutely do exist, but they’re not mostly close enough to be truly competitive. It’s also important to factor in that 4/5 of the largest games on PC are not even on Steam at all: Fortnite, Roblox, Minecraft, and League of Legends. PUBG is the only one of the top-5 that’s on Steam.