But if governments worldwide thought their citizens were a lot more concerned, would they maybe act more?to prepare for reelection for example...
Assuming that the bots were undetectable, would you do it if you could?
https://petitions.obamawhitehouse.archives.gov/
Basically, real change isn't going to come from a few megabytes of text. It would be better to start or join a charity, a lobbyist group, or some other real-world action.