It is easier to unite people against something than to unite them for something. You can tell them to come together and build a house and all you will get are grumbles and complaints while flipping the switch by telling them to come together and build a house that will protect them from certain people and boom, a larger percentage are responding positively to you.

Liberals and conservatives in the United States spend their whole day blaming each other on Twitter because society has nothing better to do than to sit down and complain yet when the United States soccer team is playing against anybody, they sing the same song.