'Britain managed to overcome adversity before, we'll do it again. We are more powerful than our enemies think'
At this point, ridiculing or fact-checking is USELESS.
And by arguing about THEIR views, we are not only exposing that story and emotion to more people, we are having the debate on their terms.
Checkmate.
Two choices.
1) Ignore it so it doesn't go viral.
2) Counter with your own story
For e.g.: WW2 & Marshall Plan are actually a great example of international solidarity & alliances - which is why the EU was created.
But people forget facts or ignore them ('so what, he still has a point about our past!' - many will say). And outrage only helps boost the Leave message.
Without a counter-story we bring a knife to a gunfight.
/END