I am genuinely puzzled by the statement "social media and MSM is predominantly left wing"
I admit I know relatively little about social media but the main stream media in this country consists of newspapers like The Daily Mail, Express, Sun, Telegraph and The Times, all of which are clearly right wing and in the main pro-brexit. Only the Guardian and Mirror tend to support Labour, with the "i" being neutral.
I know that the BBC is accused of bias by both right and left and uses this as an excuse to claim that it is unbiased, but it has always been obvious that the BBC has played a big part in promoting brexit, not just since 2016, but for a good twenty years, constantly inviting Farage onto QT and other political discussions, when no other MEP ever got a chance to correct his lies. I think the BBC have a lot to answer for.