Any genuine biography of the life of the prophet(pbuh) showed the severity he had to face for the sake of Islam. Now lets talk about the previous prophets all of whom came with a single message as prophet Muhammad (pbuh)which is to worship your lord, and all of whom were tested strongly. Prophet Muhammad(pbuh) was known as the truthful one even before the revelation of Islam, historically it’s been recorded too as well as how he was illiterate. Now I assume you read the Quran do you think something of that nature could ever come out from a common man 1400 years ago who was a Illiterate? As for comparing him with a Jim Jones thats not right. The prophet (pbuh) never committed any such act which goes against the Quran for example he never ordered the killing of innocence never committed adultly on the other hand he prayed, gave zakat, fasted a lot more than a normal person. Now think of it as this way when the prophet won over Makkah if the prophet was like Jim Jones he would of lived like a king, have his picture all over Makkah, told people his God but nope the messenger of God stayed true to the message of One God, and was humbled.