The losing side always blame the media for their own failures. It happened with Indy Ref and with Brexit. It's similar to the way losing football managers always think the referee had a bad day.
Having said that, it is now beyond all doubt that the print media, the movie industry, TV and social media have a strong left-wing bias.
Facebook continue to deny responsibility by claiming that they are only a platform. That is not sustainable if they continue to make these editorial decisions.