"either you differentiate, or is is unskilled labor"
I don't think this assertion holds up, especially if you look at other industries.
A car mechanic doesn't have much room for differentiation beyond "I can service more car brands" and "I'm cheaper" or "I'm faster". Anyone can match your offering as long as they can balance the trade-offs involved (sufficient resources, etc). That doesn't make being a car mechanic unskilled labor - doing car repairs properly and efficiently requires a lot of practice and training.
Similarly, if I'm a bank there's only so much differentiation I can offer. Different financial services and interest rates or stuff like that, sure, but at the end of the day I just store people's money in accounts and provide loans. That's basically all I do, and any other bank can do it. A bigger bank has the ability to do it better (due to their resources and regulatory capture) no matter how much I differentiate myself, and since it comes down to policy in many cases another player can just come in and copy all of my policies. None of this means that working in banking is "unskilled labor".
The tendency to call people like chefs or line cooks "unskilled labor" is disgusting. Being a line cook or a chef in a high-pressure restaurant environment is REALLY HARD and takes tons of practice and training.