That depends on their definition of software. If software is partly defined as something we can create, and consciousness is something we can't even fully understand, let alone create, then they are correct.

You don’t know that.

I also don't know whether ghosts exist. Will you go to bat for them, too?

but stating it as fact is disingenuous

Pretending that consciousness is software because movies and videogames portrays it working like software is far more disingenuous, I'd say.

You will never be able to make a perfect copy of the brain and anything less means you wouldn't be "you" anymore. Any of these schemes about copying the brain are moot because of that, I think.

"I call myself a millionaire because I might win the lottery someday"