Jeff Bezos probably hires more people than you. Either that's a good thing or a bad thing. Many would say it's a bad thing, because hiring is exploitation and theft. But if that's the case, then we should be glad whenever Amazon fires people, because it means Bezos is becoming more similar to you (who doesn't hire as many people as Bezos and is therefore morally superior). Same deal with immigration. Companies hiring foreigners is bad because hiring them is exploiting them. But it's also bad because it means not hiring domestic workers. Just a minute ago, billionaires hiring people was exploitation and bad, so isn't hiring domestic workers a bad thing? We should be glad that they do less of that. If wages are slavery, then firing workers is like freeing slaves. Maybe billionaires shouldn't be hiring anyone. But that's a bad thing too, because whenever they buy robots to replace workers, we get mad about automation replacing labor.
Maybe employers have an obligation to hire people and give them a wage above some threshold, but then shouldn't this standard apply to everyone? Most people could start businesses and pay workers, but they choose not to. I don't see how that's more defensible than an employer not hiring workers.