Go back a couple of decades and you'll find central authorities and organizations with agenda to manipulate the public could easily do so because the rest 99.99% didn't have access to information.
People who wanted truth had absolutely 0 way of attaining the truth back then. Now you're complaining about how it's "hard" to search for accurate and unbiased information. It's not even THAT hard, you just need to google a bit more, sure it's not easy for everyone, but at least there's a way.
Knowing a lot still means a lot ;)
I do generally agree with you though I'm hesitant to use the term "truth". There is a part where it is first world solution: a lot more information is now also available to citizens in the first world.
But you are wrong that it is not that hard or that it is an issue of googling a bit more. In many areas Google's improvements in these decades has been incremental. And if your search term matches hot commerce terms then likely no amount of googling will get you where you want to go.