Spokes are either stainless steel or galvanized. Galvanized spokes are the sign of a manufacturer trying to meet a price point. Your bike has cheap wheels.

If it was my bike, I'd try to love it for what it is. If you're trying to flip it or if the rust bothers you, you can try the steel wool thing to knock back the rust but it's probably not going to work long term. Eventually the spokes are going to start breaking. When that happens, it's going to be time for a whole new replacement wheel.