That argument is as old as any mistreated worker complaining about their situation and as old as any argument against workers rights in general. Anybody not liking their job could just leave right? Simple! No, the world just isn't that simple and it didn't become simpler just because it happens in an AI context that produces a tool you like.
There are lots of jobs out there that suck and people do them anyway. Because the freedom that they supposedly have is not as free as you imagine.