Net Worth is a value. The NWS sweeps all the value ($$) from the GSEs. That includes what gives equity its value. The equity structure does not change. It just means the equity have no value presently.
My backup is my knowledge. I am not going to look up references as I am at my lunch break. I did not expect this to be an argument. If you believe the NWS modifies the equity structure, then thats up to you. Good luck