There is no going back, there will not be negociations, the americans want to loot us and it's just a matter of not letting them. There will not be adults in the room and this "be nice Donald and keep your yapper shut until we have talks" is worrying if sincere and insulting if cynical. In either case it exposes this guy as the obvious empty banking mercenary suit that is almost certainly is. This is once again liberal just handing over all the ammunitions to the "bad cop" of this "two party one system" so we can get reamed for 4 years of Donald while they keep their hands clean.
The establishment is making them bet that "now that we're under attack we'll rally around the flag and not elect a system-smashing demagogue". That's how they WANT to lose.