"Christianity didn’t begin until a century after the crucifixion; Jesus and all his apostles died Jews"
So a takedown by Brook Wilensky-Lanford of a life of Jesus.
I guess it depends what he thinks he means by "Christianity". The early Church was all Jewish, but it wasn't long before they agreed that Gentiles could be followers of Christ without circumcision or adopting Jewish food laws. Within the lifetime of Peter, for instance, members of 'The Way" were already being called Christians.
So as long as by Christianity he doesn't mean "a movement of people who followed the teaching of, and were accepting the name of, Christ" - then what he's saying isn't necessarily drivel.
I'll leave it to you to decide.