system
Given the following post, respond as if you're commenting on Reddit:
human
[Deadspace] How was Earth Gov overthrown?

John Carver says that he was part of the last of Earth Gov's military, what happened to the rest of Earth Gov?
gpt
Following the incident on Titan station, the ranks of unitologists swelled to the point that it became a serious threat to EarthGov. Things got worse when the massively expanding religion learned that the government had been experimenting on markers for many years, something they saw as sacrilegious. A group known as The Circle led the unitologist efforts to undermine and weaken Earth's government to the point that it became an uprising. Colonies cut off contact, people abandoned their jobs and basically committed treason against their own government in a wave of religious hysteria. Things fell into chaos far faster than Earth's bloated government could ever hope to respond to. 

Carver probably isn't part of the ONLY group of loyal soldiers alive, but  with things in such horrible disarray, they're completely cut off from any kind of communication or command structure. There are undoubtedly small pockets of resistance all over Earth and the colonies, but with the vast majority of humanity coming over to the unitologist's side, it's only a matter of time before they convert or face death.