I think Corbyn is bigoted, but not racially. I think he's bigoted about anybody he considers to be right wing. I think he's definitely inflexible and, therefore, doesn't have a grasp (or probably doesn't want to have a grasp) of what it takes to succeed in politics.
Angela Rayner has said Jeremy Corbyn has an “absolute blindspot and a denial” when it comes to issues raised in the Equality and Human Rights Commission report into antisemitism within the Labour Party. I think she could be right.
The way I see it (my opinion) is that anti-semiticism did become weaponised against him and some people (media and general public) exaggerated it, but that was because he didn't nip it in the bud, which an astute manager, especially a politician, should have done.