Human beings don't want to just enjoy something by themselves. They want to share that emotion - they want everyone around them to enjoy it like they enjoy it or hate it like they hate it. That's what makes a video spread.
“I am politically pro-choice, but personally pro-life. I have my faith but refuse to force it on the world at large - especially this world, so brutal and unjust. I cannot make these wrenching personal life and death decisions for others - nor do I believe they should be made by a church run by child”