Well, OK but I don't think anyone here is doing that. No one bats an eyelid at, say, a bank firing a member of staff because they get caught in possession of pictures of young boys, and unless said individual changes their name and their appearance and everything else about themselves, purges all acknowledgement of that identity's existence and starts afresh with a new one, they're not getting employed by any other bank or halfway joined up corporate organisation ever again. Now make that bank worker a footballer and those pictures of naked children pictures of a beaten up woman and you're in a not dissimilar place, except it's rather harder for a Premier League footballer to simply shed their identity and start again in the hope that no one will ever recognise him. Hell, it's apparently pretty difficult for a bank worker to do that.
Other clubs not wanting to sign Greenwood isn't an incorrect move on their parts, because they have to consider the position of their fans. And if you're saying that the fans shouldn't have that position because he hasn't been found guilty, then you're asking people to slavishly kowtow to the absolute correctness of the legal system which is a somewhat illogical position. So if we accept that the legal system is fallible, then the only way to get what you seem to want is to stop putting footballers in the news.
You might be better off commanding the tide not to come in, Your Majesty.