What deism has done for the world

[Esquilax]

Premarital sex is a sin.

Right, so you've made the unjustified assumption that the sex here is premarital. So you're still operating from a basis of ignorance.

And yes saying Jesus did nothing is a truth claim and as such whoever makes such a claim has the burden of substantiating the claim. Unless that is just their opinion to which I would say you are entitled to it.

Only if you can demonstrate that Jesus existed to begin with; the claim that he did nothing is only a claim that is possibly untrue if he existed, since things that don't exist do nothing just as a matter of course. Since you haven't gotten near fulfilling your burden of proof as to Jesus' existence (and godhood, given the scope of the conversation we're having. You'd need to fulfill the burden of proof on both of those claims) then by default it cannot be accepted, and therefore no burden entails on the claim that Jesus did nothing, since his existence hasn't been established for him to be able to do anything.

So, all you'd need to do to be correct is to prove that Jesus existed, and that he was god. I'll leave you to that.