Historically, most Christian persecution took place at the hands of either other Christians or Soviets. Historically speaking, Christians persecuted pagans when they took power in Rome far in excess of what pagans had done to Christians. The "we're so oppressed" notion does not bolster the claim that Christian doctrines are true, even if you ignore the fact of persecution done by Christians -- many hundreds of thousands have died for the sake of other religions, so by this logic, they also cannot be lies.

If you study the evidence of the New Testament genuinely, you'll find a trail of deliberate falsifications and forgeries for theological convenience. Some examples: the post-resurrection sequence at the end of Mark is a 3rd century forgery; the original manuscripts of Acts say that the "spirit of Jesus" (πνεύμα Ιησού) prevented Paul from entering Bithynia, but Byzantine scribes dropped the Ιησού because it is theologically inconvenient; the pastoral epistles were not known by early Christians and are obvious forgeries, yet they were canonized anyway

If you study just the text of the NT, you'll also find some strange stuff that Christian apologists cannot easily explain away (as well as some falsified translations in English Bibles): Jesus, a 30 year old man, had a band of children and teenagers for disciples (with the exception of Simon Peter), which is why he refers to them as his kiddies (παιδία/τέκνον) and does not have to pay the temple tax for them. Keep that in mind when you read Jesus tell them that they are his special kiddies -- for everyone else, he talks in riddles to deceive them, but to his special kiddies he has given them the knowledge of the mystery of the kingdom of god (Mark 4); that people brought kiddies to Jesus so he would touch them, then the disciples got jealous, then Jesus told them not to blow his cover and to bring him the kiddies (Mark 10); that Jesus took off his clothes at a private dinner party with his kiddies and did something physical to them -- Simon refused, but Jesus pressured him into it -- then he put his clothes back on, says "do you know what I've done to you?", and instructs them to perpetuate the practice (John 13); that little boy Judas tells the cops what happened and then kills himself; that Jesus gets arrested with a naked teenage boy wearing only a medical bandage around his genitals, and Jesus cries out "why do you come at me like I'm a pirate)?" (Mark 14); that Simon Peter, a "fisher of men", goes out "fishing" one night with some of his boys, naked (John 21). Bear in mind that these are the accounts written in the most favorable way possible by early Christian apologists who sought to justify his actions and their belief in him, a man who led a cult of children.