This is a very good analogy about all the stuff going on with the flags and anti immigration stuff going on in the UK at the moment.
If you go into the desert and catch 100 red fire ants, as well as 100 black ants and put them in all a jar, at first nothing happens.
However, if you violently shake the jar and put it back onto the ground, both sets of ants will fight until they eventually all kill each other.
The red ants think the black ants are the enemy and vice versa.
The reality is that the enemy is the person who shook the jar.
The question we should be asking ourselves, who is shaking the jar and why ?