He continues: “So is language like a sort of computer code the interlopers imposed over the human mind, to basically “program” humanity?” What can Creator tell us?

It is not that language uniquely poses a danger. The extraterrestrials are psychic and so they can work through your intuitive sensing. But it is true that the heavy reliance of human beings on language, not only to communicate with one another but to talk to oneself and form thoughts that will be almost entirely an exercise in self-talk in one's native language, rather than a kind of intuitive reverie, means it is only natural that, in a desire to manipulate, the extraterrestrials would do so through the native tongue of the victim in seeding ideas through familiar words imparted subliminally.