This video by Owen Jones on the DIRE consequences of a Brexit is well worth watching:
https://www.youtube.com/watch?v=3FqAaD_lsRw&list=PLTYmWuFco1_1xD06DoY0BR...
Would these be the same dire consequences that gripped France and The Netherlands following their 2005 failure to ratify the EU Treaty in a referendum? I seem to remember there was all sort of panic about what would happen, but last time I checked, the sun still rises in the east and sets in the west, the moon still shines, the stars still come out at night, and the Big Dipper constellation is still in place.