I don't read everything you write.
What did Jesus teach that was codified into US Law?
"The Bible" didn't exist until almost 400 years after Jesus.
What you have in the first century are multiple independent accounts about the life and death of Jesus written by different people who knew the eyewitnesses.
You're back to believing the New Testament accounts are just in total fabricated fictions? Not even even the great atheist scholar Bart Ehrman believes that.
Jonestown was largely a mass murder. Not a mass martyrdom. The followers of Jim Jones were mentally unstable people.
I don't think one can read Romans or Acts and conclude Paul and Luke were insane.
The apostles were witnesses and martyrs for Jesus. They were willing to endure stonings, beatings, shipwrecks, pirates, prison, execution for what they saw and believed.
That's not proof, but collectively the witness testimony, the martyrdom, the revelation of nature and conscience are a logical train of inferences that reasonably make Christian faith rational for the thinking person.
You are free to discount that or not believe it.
What you can't do is point at two billion Christians and say they are all barely sentient irrational fools.
It's possible that life, the universe, and everything is just a fluke chance resulting from inanimate physical processes.
But I don't think your case for that faith system is as strong as you assume.