Toast. Yes, you have heard people suggest the US shouldn't control their borders.  Everyone has heard that from time to time.  No, not everyone agrees they should, crazy as that seems.  Having said that, a travel ban against countries that cannot or will not control who is coming and going, and countries who have clearly demonstrated they would like to destroy a country like the USA if they could, should be banned from coming into the country that is subject to the hatred.  If China said to Canada that we want to destroy you, and are going to do what we can do to this, should Canada allow people from China into our country?   The  reaction to more controls on the border is immediately met by accusations of racism.    If I felt for one minute my government had any interest in stopping queue jumping instead of rushing to Emerson, Manitoba for a selfie, I may think differently.