Yes, and the only way to fix the monopsony is for creators to own their own distribution channels so they can sell directly to their customers instead of selling to middlemen who take the vast majority of the profits and pay them peanuts.
The problem with collective bargaining is that it either involves unmanageable transaction costs, or an unmanageable principal-agent problem. Either every single creator has to be directly involved in the bargaining, which can't realistically be done, or the creators have to empower some small subset of them as bargaining agents, which means the rest of the creators get screwed by those agents.