system
A chat on subreddit /r/NoStupidQuestions
human
Historically Christians were doing the persecuting. 

The Roman’s didn’t persecute you. The Roman’s tolerated all religions. Eventually they just got tired of Christian’s because they were the only ones needed to convert everyone else. 

Christians persecuted people in the witch trials, during the inquisition, and it destroyed entire groups of indigenous peoples essentially. 

Christian’s make up a lot of their claimed persecution and ignore the fact they’re one of the worst offenders.
gpt
Romans did in fact persecute Christians. While some accounts might be exaggerated, there was a measured and deliberate attempt to contain and remove Christianity since it was so subversive to the Imperial Cult and Roman values.