It also confuses historicity with divinity
He is falling into the classic trope of thinking that if you shout louder and more often that people will believe you. Standard modus operandum for christianity over the years. Why they've got away with it in the past is firstly by getting their claws into kids at a young and impressionably age sufficiently that they see christianity as simply something that they are by upbringing. Plus of course a healthy dollup of authoritarianism and threat.
But in many countries both of those elements are falling away, both due to freedom of religion (and freedom not to be religious), plus a broader and more balanced upbringing for many kids that doesn't bring up kids to be a specific religion, but recognises they can make their own choices. And guess what happens - in their droves kids and the adults they become go 'sure I know you keep ramming this christianity down my throat, but I just don't believe it'.
Bottom line - stop blaming individuals for not believing, stop blaming the messenger (in other words thinking that if you find some new and different manner to get across the christian message, then everyone will believe it) - start looking at the actual message. For huge numbers of people the reason they don't believe in the claims of christianity is because they are, frankly, unbelievable. No amount of telling us again and again and again, or using shadow puppets, living testimonies or washed up old rockers etc, etc is going to change the fundamental unbelievability of the message.
