Since Google and co were never given the responsibility of telling anyone the truth this seems to be another naked powergrab to spread FUD and scare stories so someone can have a 'monopoly on truth'.
Diversity of opinion and widespread rumour mongering is a natural state of affairs in human society. Those who are unsettled by this and seek some sort of uniformity and control betray a troubling megalomania. Elevating yourself over others to decide somehow only 'you' are able to discern the facts confirms it.
That leads to not to Google or Facebook curating news but 'one source of truth' controlled by the government and authoritarian entities, using the exact same logic. Some people may be experts at C and Go but betray an astonishing illiteracy when it comes to history, freedom and evolution of human society.
Notions of truth have been debated for eons so there is already a large body of knowledge. You need an educated literate population and accept people will have wildly differing views and trying to protect the 'ignorant' not only turns your society into a tightly controlled cage but reflects a streak of authoritarianism and megalomania in the 'protectors,' now prevalent among many technical folks.