> Are you really suggesting that someone spending $100k could decide the outcome of an election as big as the U.S. one?

You are very conveniently omitting recent disclosures from facebook that over 126 million Americans may have seen Russia based political posts over a two-year period leading to the election. Source: https://www.reuters.com/article/us-usa-trump-russia-socialme...

This isn't about a particular candidate winning or losing the election. The case would be equally horrifying if Hillary had won the election with the help of a foreign-state-sponsored social media campaign.

And I would implore you to check out the Ted talk I have posted above. It is not about supporting any particular candidate - it simply talks about how powerful these micro-targeted campaigns can be, and we ignore their potential and their effects on democracy at our own peril.