Hate: The Most Unifying Love

Merry Christmas Eve. I just thought I would throw down a few lines for the couple of you out there who occassionally read this.
Yes, there is a lot of hate in the world. There is a lot of war, a lot of distress, a lot of sickness.
And to me, I've found that most alliances are formed not out of peace, but because of a common enemy. Not because they necessarily want to be friends, but because they both hate someone else more than they dislike each other. Hate is the most unifying love.
And that's what is wrong with the world today, besides many other things, of course. The only unity we seem to have is temporary "gang-up" on something that two people who dislike each other decide to quickly team up to destroy, and once the greater enemy is destroyed, the unity is broken and the old hate back into place.
Whether at a national scale, or a personal one, this happens in everyday life.
When looking at something or someone different, I think human beings tend to immediately look for differences or reasons why it is not up to our standard, or why we should avoid it. As humans I believe that we would rather give ourselves "warning signs" to stay away from something and hate it, as to not grow attached or fond of it, because if you care about something, you might have to do something about it. But I think if everyone were to actually love, especially on this celebration of the God of Love, Prince of Peace coming into the world, they would realize how much easier it is to love than to hate.
And so...here's my observation.
It takes two to go to war, but only one to fall in love.
Which one is easier?