Wikileaks is left-wing? I did not know this. The narrative, of late, has been that Assange is a fan of Trump and aided Putin's goal during the election.
Wings have lost all meaning.
Wikileaks hasn't been censored at all; they're even still present on Twitter (unlike any far-right-leaning personality).
Wikileaks has been immorally persecuted in many ways, but direct censorship is not one of them.