Its going into the mire, if people keep repeating things they have been told by parts of the media without stopping to examine whether or not they are actually true.
Take your post for example. The most bullied person in British politics, at least based on abuse in print, in person and online, is Dianne Abbott (with Corbyn himself not that far behind). The Labour MP whose relations have broken down the most with their CLP - votes of no confidence, open rows etc - is Kate Hoey (seriously - look at Vauxhall CLP's twitter page). Chris Williamson was a Blairite and a backer of Miliband who only got back into the Commons in 2017, so wasn't around to support Corbyn until then.
You are either not told, or are only rarely told, any of this. Instead its "look at the brave MPs, close friends of ours, who have had to leave the Labour Party" repeated ad nauseam, rather than the much rarer "Chuka Umunna is being paid £65000 a year to lead a think tank that has several prominent journalists on its board and we don't know who funds it" or even "TIG isn't actually a party, if you donate to it you are just giving Gavin Shuker your money".