The definition of a Zombie from Wikipedia is as follow, "Zombies are fictional undead creatures regularly encountered in horror and fantasy themed works. They are typically depicted as mindless, reanimated corpses with a hunger for human flesh, and particularly for human brains in some depictions."
Now we are going to focus on the human brain. We were all given brains to think and make decisions on our own. This is what we are led to believe. Recently there has been evidence of the contrary. This has to do with the phrase "Freedom of Speech". When a person uses this to express their opinion, we as a society are suppose to listen and then form our own thoughts based on what has been said even if we do not agree with them.
With this in mind it is no longer acceptable to use this method of speech. The best evidence of this is our friendships and how fickle we are in not respecting what others have to say. We will go as far as just stopping hanging out with people that have their own minds and people do not agree with each other.
Another example of unacceptable uses of "Freedom of Speech" is when a person speaks their own mind to a mass audience and what is said is not the most politically correct statement. When this happens everyone comes out of the woodwork to let us know that this opinion should not have been said because what is said is not acceptable in today's society.
So what we are becoming is a world where we do not have to think about what is being said to us because speaking against the grain in not acceptable, thus we are all as a human race are to think the same. We no longer need our brains to filter out what we do not agree with or respect a person for not thinking the same as others. We are all to think the same and just nod and grunt while moving forward with the same expression.
Finally the Zombie Apocalypse is upon us. Please let it happen and do not even think about it. Just accept it.