system
Given the following post, respond as if you're commenting on Reddit:
human
[Transformers] Why are the new bots decepticons?

In "Revenge of the Fallen" Sam gets ahold of a piece of the Allspark, and when he accidentally creates new Transformers, they all appear to be evil and Decepticons. 

 If the Fallen is the first Decepticon, that means Primes and perhaps Autobots too were older and the "standard setting". Is the Decepticon "mode" the standard setting these days?
gpt
The all spark creates new transformer life, "Decepticon" is a faction created by Megatron. They're the equivalent of wild monkeys flinging poo when they're brought to life by the allspark, only their poo is live ammunition. They work together because they must recognize each other inherently, and their instinct to assert dominance over any different life form, which is why they attack Sam.