I said it was my opinion that Irenaeus "borrowed" "Matthew" from Papias in order to attribute an author to an existent gospel. Did Irenaeus know the logias were not about an unnamed gospel or did he jump on the opportunity to get an eyewitness of Jesus to one of the unnamed gospel at the times, I do not know. Regardless that does not mean Irenaeus fabricated gMatthew or heavily added up on it (if it is what you mean by "developed a back history for 'according to Matthew"), nor that Irenaeus "was consistently dishonest" when and where you want it to be. All the rest you wrote is the product of your imagination. Again your thinking seems to be if Irenaeus said the heretics modified the gospels, the opposite must be true: It was Irenaeus who did.To this end, we have already demonstrated that Irenaeus lied when he developed a back history for 'according to Matthew.' He took what Papias said about another text and passed it off as his own. People like Bernard want to 'give the benefit of the doubt' to Irenaeus's intentions. I say, when we look at the case for Irenaeus's 'faithful' preservation of earlier material is actually examined, the evidence on balance suggests he was consistently dishonest and therefore it is highly unlikely that textual difference between 'our gospels' and 'their gospels' (those before Irenaeus and outside the Catholic faith) are for the most part accidental. Indeed Irenaeus throws the first salvo when he suggests that the differences amount to his opponents changing the commonly held material in favor of their theological presuppositions (thus indicating that changes were made for theological reasons).
Cordially, Bernard