The court administered justice. And there's no confusion here, Evans legally has got every right to play football again, and the supporters and sponsors that he's going to represent have got every right to say that they don't want him because of his previous conviction (and possibly subsequent lack of remorse). It's for potential employers to decide whether they want to employ him against the wishes of those people. Just because your opinion differs from theirs doesn't make them a 'mob' - he's chosen to try to revive his career in a public arena, and some of the public have spoken against it, whilst some like you choose to support it.*
Ched Evans is a free man in that he is released from jail, but actually because of his crime he is categorically not entitled to the same things as the rest of us. He cannot, for example, work as a policeman, or a doctor, or a teacher - and is a registered sex offender. So the years served in prison clearly do not completely wipe the slate clean for any man convicted of such an offence. The courts do not make a judgement on whether he is entitled to return to his previous career one way or another, that's down to his potential employers, and were he a professional such as those mentioned, the standards of behaviour required by his professional body.
As for McDonald, he may have done nothing illegal, but I'm not sure that I'd agree that he did nothing wrong - that's a matter of opinion and taste though I guess, and I'll leave you to read through the details of the case and decide for yourself whether you'd consider his behaviour acceptable. As for his life being hell in the run up to the trial, I've already said that I'd favour anonymity in such cases. Regardless, having been found not guilty he should have been free to get on with his life, I'd say.
I've got more concern for the victim here in truth, and the other ones that might be too scared to come forward as a result of the ongoing and illegal campaign against her. Now there's what I'd call an attempt at mob-justice.
*Edit: That's your right too by the way, supporting what I'm sure you'd argue is his right to play professional football without hindrance. I'm not suggesting for a moment that you're supporting what he's done.