The question was quit or retire, and you'd be surprised how many have enough years in to retire. But "quit", we can only hope it's true. They might also know that Trump is going to be crawling all over their budgets and actions, and it could be they're going to duck the buck by quitting rather than being fired. If they're fired, they lose a lot. If they quit, they keep everything they've accumulated, and if they retire, they keep even more. So it could be that reality check showing up in the poll as well, i. e. "get out while the getting is still good".