I agree. There is fact in historical events and people as, they either really did happen or they really didnt , or they really existed or the really didn't. But there is almost no way to "prove" either opinion. I would say the same thing for science, but to a lesser extent. The only intellectual endeavor that holds true proof, is mathematics.
However with that being said, in historical issues as well as scientific issues, you have to look at who has the strongest evidence to support their opinion. I'm not saying your ignorant because you support a mythical Jesus, because there is a lot of evidence to support a mythological Jesus. I'm just saying there seems to be a lot more evidence for a historical Jesus. I've researched all of the mythological arguments, some of them better than others, but they still leave a lot of questions unanswered that a historical Jesus does not.
Is there a ton of myth interwoven into the Jesus story, of course there is. But don't be so quick to use these myths to deny the existance of the man.