Two of the issues you mentioned, state run gulags and anthropogenic climate change, are issues really only solvable at the federal level. Facebook's and Cambridge Analytica's ability to influence an election can have a profound effect on those kinds of issues. I mean, we now have a climate change denier in the White House who is dismantling the EPA. If propaganda spreading through Facebook created that, could that not also be partly responsible for our inability to do something about climate change?
That's just one example, but I think you're being just as hyperbolic by saying this wouldn't crack the top 100.