I don't doubt that the AEGIS system arrays are capable of jamming/EW neutralizing of smaller drone swarms.
But AEGIS isn't everywhere, and the ground war is showing that fratricidal jamming of drones is a serious issue for both sides.
True, but that much EW energy also tends to ground friendly drones, and take a lot of power to sustain long term.
It also fouls your regular comms, and might even mess with a Starlink connection if it is severe enough.