Staff of the UKLabour party deceived the leader at the time by making very targetted facebook ads, so it would look to him like they were doing what the campaign as they were meant to be, while they were actually trying to undermine him.
This wasn't because Corbyn's side didn't have policy positions or wasn't getting things done - it's because wealthy vested interests were fucking terrified of what he would do.
Blair is a full-on war criminal btw, so presenting the two as somehow equivalent is staggeringly dishonest.
At a glance though, it seems to be making the same "mistake" that you are:
> Forde’s seeming even-handedness is, in fact, a continuation of factionalism by other means. The report’s implausible premise is that Corbyn and a handful of staff in the leader’s office wielded as much factional power as the combined might of Labour HQ, the parliamentary party and the entire media establishment. Each side was apparently equally obstructive and uncooperative; each fed the other’s political paranoia.
> That misrepresents the true balance of power in Labour – and the reason why Corbyn spent his years as leader permanently on the defensive, battling internal revolts and media firestorms.
...
> The same lacuna can be found in the Forde report’s analysis of Labour’s “antisemitism problem”. Starmer has stepped up the crackdown on left-wing members on the basis of a supposedly continuing concern about the prevalence of antisemitism in Labour’s ranks – a claim at the heart of the Labour right’s efforts to discredit the left under Corbyn.
- https://www.jonathan-cook.net/2022-07-21/forde-inquiry-labou...
Here's a helpful tip - anyone calling Corbyn an anti-semite is either a massive piece of shit, or incredibly ignorant.
“Corbyn’s aides sometimes demanded big spending on Facebook advertising for pet projects which Southsiders [officials at Labour HQ] regarded as a waste of money,”
> They wanted us to spend a fortune on some schemes like the one they had to encourage voter registration, but we only had to spend about £5,000 to make sure Jeremy’s people, some journalists and bloggers saw it was there on Facebook.