In your opinion what causes christians to believe in Jesus

[Sheldon]

No doubt Christians have a lot of unlikely expectations about the world, based on their worldview.  However, they depend on social proof (other people agreeing with and supporting them) rather than evidence to support their beliefs.  This is unfortunate for them because it cuts them off from so many other people who actually require evidence, as well as from other religious believers with other stories.

In contrast, multiple lines of evidence accumulated over centuries support a materialistic interpretation of the world.  While science is open-ended, it has already discarded a wide variety of interpretations in favor of its own perspectives.  If you want to change that picture, you have to offer evidence supporting Christian assumptions, and not just more stories of how something might be true.

I would personally erase the word evidence from my vocabulary entirely.

What do you mean would? It's gone, along with a whole slew of other words that don't mean what you seem to think they do. What you can't do, is insist others eliminate it, or the need for it. 

Nonetheless, this ongoing attempt to arbitrarily redefine common usage, and ignore objective facts, is all part of the same desperate rationalisation you are using, to pretend your chosen deity is real, but without any sound or objective reasons. To cling to a subjective religious belief, that is the way you make sense of the world. I have spoke to countless people who have lost this belief, and stated that the experience was terrifying. No wonder some people find to easier to cling to it, and defy objective reality. 

Luckily for me, I was never indoctrinated into any religion with any such virulence, and atheism is no big deal in the UK, in fact it has been on the increase steadily for decades.