Like movie guns work like real world guns? They never seem to jam or run out of ammo unless it's dramatic, and their ability to knock people back is amazing. I seldom notice any recoil either. I guess it's movie cars that are like their real world equivalents. Cars do blow up when shot and everytime they go off a cliff right? Well there are always movie cops. They walk all over the law and obtain tons of evidence illegally, but they always get their man and it holds up in court. Movie court that is, where you can introduce new evidence whenever you want and don't have to worry about any inconvenient laws unless it's dramatic. Then there are movie soldiers. I doubt real soldiers always walk out in the open and silhouette themselves against pretty much every light source. No matter how much mud and rain those movie heroes go through they have pearly white teeth and dry, clean clothes. Movie pilots have to take off those silly masks so they can talk to each other through their radios, even though their mics are in those masks. Those radios always do a great job of communicating, even with the bad guys. Of course the planes always have the right mix of missiles and plenty of them. I could go on about every genre.
Every movie that isn't a documentary is a fantasy. Heck even a lot of documentaries are fantasies. Every movie requires suspension of disbelief at some level. It's just a little odd that in a movie about the walking dead, the rapid spread of a virus that is super effective, is the deal breaker.