In terms of unfair treatment on a personal level, I think the attacks on Corbyn were off the scale, so in that sense you're maybe correct that few other politicians have been subjected to the something literally 'equivalent', but let's take, for example... Jacob Rees-Mogg.
The very mention of Jacon Rees-Mogg's name gets a lot of liberals and lefties frothing at the mouth, and through their lens it's perhaps impossible to expect them to have any sympathy for him, but whatever you think of Jacon Rees-Mogg's arguments and opinion, I've never seen or heard him be anything other than calm, patient and immensely courteous in making his case, despite sometimes facing some of the rudest and most hostile characterisation and interviewing I've ever seen directed at any right-wing politician. A couple of interviews with James O'Brien on LBC spring to mind as particularly outrageous examples, but I've seen several other interviews where the treatment of Jacob has not been dissimilar to that meted out to Corbyn.
Of course politically, Jeremy and Jacob could hardly be more polar opposites, but they are actually very similar in the way they seek to politely explain their views, and yet because they are both politicians with views well outside the centrist tram lines, they certainly get the 'hounds of hell' treatment.
Of course, Jacob has one advantage over Jeremy in that he has now found a news/opinion channel which is positively welcoming to him, and Jeremy never really had that (the late Russia Today, maybe?

), but nobody should be subjected to outright rudeness, constant interruption, character assassination and scorn just for expressing views that are assertively Socialist or Conservative. They should be respected for articulating a particular perspective, engaging the public, and giving people choice.