I don't like it, but it really is a fucking jungle out there. Nature can be cruel and spreading fake news for personal gain is as viable a survival strategy as any other form of parasitism.
Will continue to hold onto naive notions that human existence can have some sort of meaning beyond survival of the best adapted until the sun burns out, however, but it ain't easy. We weren't meant to live like this, dammit!
But if you believe that there are such things as truths and falsehoods and that they can positively and negatively shape our society, we cannot ignore the effect that 'fake news' or other misinformation have on large parts of the population.
We can't drop the pursuit of truth just for the sake of satisfying an angry majority. That's going to turn society into a clown-car.