You do have the same fair chance as everyone else? The keyword here is chance, as in you don't always succeed.
How does a better player have any advantage, because they are better at playing the game...? Please tell me you are trolling, because I don't think any game developer would take your opinion seriously with that outlook on game design.
Sorry but if you can't faceroll your way through every boss you might actually have to use both halves of your brain to figure out what you did wrong and how you could do better next time. This is a video game not a movie. You don't just sit there and watch it play itself, you have to actually overcome your adversary.