Perhaps in reality, but not in a box of crayons they are finite.
Or are you saying we can get rid of slavery in our story telling but the we, but just have a different tone of slavery, say indentured servitude, or judicial system that imprisons people and then forces them to do labour (might even disproportionately target a particular race).
At which point why not just use the Red Crayon instead of the Cranberry Crunch Red Crayon?
So, you're saying that you can't imagine telling stories that don't involve the red crayon? Harold wouldn't be happy.
There may not be an infinite number of
stories that can be told--but there's a lot, probably more than any one GM can expect to run in a lifetime, and a lot of those stories can be told without slavery. And even more can be told
with slavery that doesn't reduce it to a goal the PCs need to achieve in order to get some XP--which is what the majority of RPGs reduce slavery to.
Are you planning to run a game where the BBEG is the government, and instead of killing people the PCs take on the role of politicians who are attempting to reform the entire judicial system and also take on systemic racism, entirely through legal means (for a modern-day politician meaning on the word
legal, of course)?
If so, awesome. Seriously, that could make for an interesting and rewarding game. But... I doubt that's what you actually mean, and I doubt that most people would want to play in that game.
Instead, what you
probably mean is, there's a modern-day game, and there's an NPC who has been forced into prison labor, and you want to break that person out for whatever reason--maybe he's an ally of the PCs, maybe he's a bad guy who has info you need--and
maybe you'll also break the other inmates out as well, and the only long-term effect that's going to happen depends on how well you rolled, because that will determine if the police are able to track you down. Or maybe the PCs have been arrested (wrongfully, I'm sure, or at least on trumped-up charges) and forced into labor and they have to escape. Best case scenario, the party reveals the prison's abuses to the media and something is done about them so the prisoners aren't being forced into labor anymore, turning the game into a complete fantasy.
(And this is as much as I will talk about the prison system here, since I'm sure it's getting too far into politics now.)
But hey, it's your table. You do you. But we're not talking about individual tables; we're talking about gaming companies, who literally hire people to write with the crayons and who can easily figure out a way to use red crayons mean something other than slavery.