What evidence do you speak of? Israel Finkelstein’s claims? Perhaps so. Their heritage is distinct from Javan (a Japhethite), who according to Josephus was the ancestor of the Greeks.
The Bible says that the Philistines came from the Casluhim, who in turn came from the Mizraim (Egyptians), descended from Ham. That’s where I get “Hamite” from, especially distinct from Semite (descended from Shem).
History. Linguistics. Care to cite the Biblical passages in question?