No it is not unanimous, nor has it been.
You show me one credible account of where he died elsewhere.
There is an ossuary in Jerusalem, found in a first century Christian cemetery - under the care of a Franciscan Order... Which makes perfect sense... More sense than to assume a devout Jew would be buried in a pagan cemetery.
Finally, it’s balderdash that Peter never mentions Rome in his own Epistle. He says it right in 1 Peter 5:13, the Church that is in Babylon. Oh but Babylon means Mesopotamia, not Rome? Really? When was Peter in Mesopotamia?
When he wrote and SAID he was in Babylon.
And wasn’t Babylon a ruin by then?
Not according to Josephus... Antiquities, I believe, who claims it a center of Judaism.
History is not always as clear as we like. Here it is.
No, it isn't.
Show me this ossuary....got a link?
Peter was not writing from Mesopotamia, which wasn’t even part of the Roman Empire at the time. It belonged to Parthia. Turn to the early part of 1st Peter. Pontus, Galacia, Bithynia...notice those are all Roman provinces? Notice the two people he says he has with him have decidedly Roman names: Silvanus and Mark (Marcus)?
And speaking of his “son” Mark who was with him there, isn’t it odd that he would follow Peter to Mesopotamia and then write a Gospel that’s full of Latinisms and not Akkadian or Aramaic ones?
But then a pagan by the name of Simon Magus on the other hand..