Lets also note there is exploitation of certain groups to create a polarization that works to insulate and retain a sphere of influence. From 2010 onwards we see disinformation getting more successful. Sofar the beneficiaries seems to be the right wing with tea party aligned idiologies and the Russians, who benefit of the division by weakening the belief in a democratic system or by discrediting leaders who oppose Russia (as in Trump is more favorable than Hillary who would have upped the pressure together with a United Europe) Same same in the UK and Brexit.

Although there are certainly double blind assets for these parties who also enjoy the rewards of this system and like to promote or sustain it. The extreme right, fake medicine, disinformation sites. It has become an system in its own right.

Edits : formatting for clarity.