Why not just ignore them?
Alex Jones is a major nutjob, tinfoil hat nutjob, everyone who takes him as an authority on any issue doesn't deserve any attention.
Because they are designed to FUD any newbie that searches bitcoin, AND the "bitcoin generators" are designed to scam them, so that they don't mess with bitcoin again for as long as possible.
I could see ignoring them, if these were once in a while posts, but they are doing it as dedicated astroturf, where they don't miss a day, or even part of a day to make sure that these scams and FUD are at the top of the UTube search for "bitcoin".
You think it's no skin off your nose, but if they succeed in dissuading even a few newbies from bitcoin, they've damaged you and the rest of the bitcoin system by slowing down adoption.