No, because physics. Electric engines are twice more energy efficient than their ICE cousins.
Supersonic jets are 2-3 times less energy efficient than 'normal' jets, and all methods to make them carbon neutral can be applied to both modes of transport.
You are forgetting one thing: how the electricity is generated. Nuclear reactor is clean, hydro energy from waterfall in Norway is even better. Or a coal power plant in Germany. Electric engine might be super efficient. But at the end it could also be coal powered vehicle.
Supersonic jets are 2-3 times less energy efficient than 'normal' jets, and all methods to make them carbon neutral can be applied to both modes of transport.