It would probably be true but I'd be built wholly off the back of ignorance being bliss.
That's not to say everyone gets all the correct information from the internet (as a lot of it is incorrect information or lies), but they'd have less information to access as a whole, which would still be making people happier through having less information and being more ignorant.
But that's not to say, because ignorance is bliss, that it should be the goal.
Social media's issue is it effectively supercharges tribalism.