Resignations by the harder-core among them just open up slots to be filled by more feminized versions. Don't know about the Brits, but Obama would love to see people who oppose him resign.
The real problem is with the voters, who control our elected leaders and apparently don't care. Probably worth noting that neither Trump, nor Cruz, nor Kasich is talking about this on the campaign trail either. We got a couple of comments when the draft issue was raised, then silence.
They don't care.
We have to make them care.