It's really hard to follow your logic, especially your version of the 'facts'.
The Myceneans are proven to be Greek beyond doubt, and their writing system Linear B is Greek- is a settled among scholars.
The Minoans, outside of their homeland of Crete, had colonies in mainland Greece, other Aegean islands (Santorini), Sicily, and as far as Spain.
Using the indo-european language is a tortured logic thread