Source: TW
Less than 2-5% of the Roman Empire converted to Christianity in the first century. This number slowly grows to maybe 10% by the 4TH CENTURY.
That means for 3 centuries hardly anyone was convinced by Christianity or that this story was accurate other than plebs, freed slaves, women, peregrini, and eastern mystics. It was seen as a strange practice by most of the surviving primary sources like Kelsus, Pliny, Tacitus, etc.
It’s only after Theodosius’ decree in 380 where everyone is basically forced to be Christian when we see a Roman Empire that finally “explodes” as majority Christian.
We even have major Jewish authors of the time like Philo who lived 20 years before Jesus is born and outlived him by 20 more years til 50CE who writes about the events of Judea including Pilate, Herod, Sadducees, Essenes, Pharisees, and many events in that time and says nothing about Jesus.
That’s a problem for you. If Jesus was performing miracles in front of 5,000 people, raised the dead, was raised from the dead, and zombies came out of the ground, then Philo should remember this or even hear about it by 50CE. But not a single source outside the gospels in the first century recounts these events.
That’s because it did not happen and the gospels are mythological stories.