Well that's just you engaging in libel or 'bearing false witness' as it was called in early modern English. But if that's the sort of behavior your religion lets you get away with knock yourself out.
"There is nothing in Greek. The Greeks just copied the Hebrew acronym."
Of course it was Jewish scholars and not Greeks who translated the Hebrew bible into Greek back during the 3rd century BC, but then history isn't exactly your strong point.
Hebrew was becoming a lost language with Greek and Aramaic supplanting it, and the large Jewish colony in Alexandria wanted a translation that they could easily use.
The Jewish scholars who created what we call the Septuagint knew a good deal more about the Greek and Hebrew languages than you do. And they rendered the name Yeshua into Greek as Ιησούς. Deal with it.