Does the man even know what "existential threat" actually means ??? .

N Korea is developing nuclear capabilities that will pose a threat to the west coast of the United States,   which makes that country an existential threat to the U.S., NOW   . . . .  or is it the case that Obama does not care about the West Coast because "life would go on" in spite of an attack?  

Obama unilaterally took down the nuclear shield planned for Poland and the Czech Republic, protecting Germany, France and the rest of the E.U. from missile attacks coming out of the Middle East,  especially Iran.  He did so without consulting any of the nations in Europe and in total disregard for the treaties  GW Bush had worked out with Poland and the Czechs   . . ..   an insanely stupid development, but one that reveals his disbelief in the powers that oppose the United States and its allies.  

ISIS is working feverishly to get its hands on nuclear weaponry.  That is why Obama is hosting a meeting of European allies   . . . . .   and ISIS is not an existential threat?   Seriously.  So,  let's just let them have these weapons and see what happens;  I mean,  they are not an existential threat.  Right?  So why the meeting at the White House,  today ??? 

I really do not believe the man knows what an "existential threat" is.  

Hint:  it is not just about "total annihilation,"  and it is not just about "today."