Seems like a colossal error to have asked them all to quit. I wonder -- if half of the air traffic controllers took the offer to leave their jobs, do we have a Plan B? The deadline they have been given to decide is Thursday; I have not seen any communication as to whether ATC (and TSA, etc.) will be operational Friday.
If enough ATCs quit that major airports have to be shut down or reduce flights, the airlines (and stock market) will turn against Trump pretty quickly. My guess is the going salary for ATCs is going to increase substantially once they realize they need to lure back those who quit.
I would love to see all ATCs in DC quit, and for others refuse to work there, so that Trump and Musk feel the consequences for their actions directly. Wouldn't it be great if Air Force One was stranded because of this.