Then why is the request to supply the evidence on which this consensus should rest constantly ignored and those who ask for it insulted?
It hasn't been ignored. And no one's been insulted, except for thousands of researchers of the Ancient Near East, who've been called biased and incompetent and even fanatical multiple times on this thread without ONE SINGLE SHRED of evidence to support such claims.
Look at Jayson's summary of the situation upthread.
Citations by scholars are shouted down as "argument from authority".
Attempts to provide context so that evidence can be understood are decried as pointless rhetoric.
Arbitrary demands are made for extremely rare types of evidence and for evidence which no one actually expects (e.g. writing from Jesus's own hand).
Demands are made to produce the actual core evidence so people can make up their own minds, despite the fact that (a) this is physically impossible, (b) the people making the demands aren't qualified to examine it anyway, and (c) doing so would take hundreds of pages of posts, making the mere background posts look like tweets.
This is blatantly untrue.
No, it's perfectly true.
Go back to my last "pimp post" and start clicking.
It's been shown clearly that Paul did believe Jesus was human.
It's been shown why it makes no sense to claim that Paul made up the other apostles (the letters could not have been sent to anyone had that been the case).
It's been shown why James is most likely Jesus's actual brother, and that even if the term is honorific he still would have known Jesus.
It's been shown that the early table ritual cannot be something abhorrent to Jews (i.e. they knew they were drinking wine in remembrance of a martyred prophet, and had enough sense to know they weren't drinking blood) and that the Jewish flavor of it was only later dropped by gentile groups (e.g. the community of Mark).
And much more.
And now you try and divert attention from your failure to support the purported supporting evidence for your argument by claiming people would be unable to understand it.
If you think that you can actually evaluate raw evidence from the Ancient Near East without a boatload of explanation and background, then you flatter yourself.
We're talking about a dead culture speaking dead languages thousands of years ago.
And you imagine that you can simply drift in, glance at a few artifacts, and come to some reasonable conclusion.
That's a bit delusional.