I can't speak for anyone except myself - but - if the discussion is about whether a man known as Jesus Christ ever existed, that's one conversation. Maybe some dispute it - that's their prerogative I suppose. That discussion is on the same order as a discussion about whether a guy named William Shakespeare wrote the plays that are credited to him - which some people also dispute. A similar debate could be held about whether Mozart was poisoned or if he died of natural causes - probably consumption. These are conversations about some points of history, whether the books and accounts are accurate. It has some importance to some, as an academic quandary, but little beyond. Settling these questions would mean very little, in the scope of things - to the Big Picture.
Then there is another discussion - whether a man named Jesus Christ is actually the son of God, creator of the universe, and if so was he immaculately conceived, and later resurrected from the dead. Did this deity ascend to heaven, where he rules the universe jointly with his Dad and some other dude known as the "Holy Ghost" (I'm Jewish and understand little about all this, I admit). Now then, if THIS is the discussion, it's an entirely different conversation than the other one about history. This discussion, unlike the other, totally redefines the existence of every human, no, every organism on the face of the earth, where we came from, where we are going, and in short, impacts the world and its creatures in such a way as to be absolutely profound. It doesn't merely impact the Big Picture, it IS the Big Picture.
How these two conversations can be interwoven, confused, or interchanged, is beyond my comprehension.
To the first question, I say maybe, but so what? I could get interested, in an offhand way, as an intellectual diversion.
As to the second conjecture, that Christ worked miracles and is the actual son of the actual Creator of the universe, I can only say, it's sheer fantasy.
And that's my take on the subject.