It's not just social media though, is it? There isn't a level playing field in the newspapers either. While I'm not a Labour Party supporter, I loathe the bullying and misinformation that is rife. See the following quote from The Independent newspaper:-
Negative press coverage of Labour’s election campaign has intensified, while coverage of the Tories remains positive overall, new analysis shows.
During the third week of the election campaign, a Loughborough University study found a persistent gulf between media reporting on Jeremy Corbyn’s party and the Conservatives under Boris Johnson.
Labour commands the highest number of column inches of all the parties, the study found, but academics said the greater prominence “should not be assumed to deliver a political advantage to the opposition”.