This insanity again. I am not a spokesman for the left, but their opposition against Israel stems from anti-colonialism, not anti-semitism. Hilarious is the suggestion that the left is antisemitic in the face of the entirety of the history of right-wing politics, going back hundreds if not thousands of years. As for scary threats from leftists, are you going to argue that Jo Cox was murdered by secret Marxists? Fascism is product of right-wing politics. Gob-smacking that anyone who can tie their own shoes would say it is somehow leftist.
Lets take your points one by one.
Anti Semitism has nothing whatever to do with colonialism. Past empire is certainly in no way an excuse for it. Your remarks are in line with a Jewish MP leaving a meeting led by Jeremy Corbyn today who left in tears after being attacked by a Momentum activist (a vile group and fascist in nature set up by Jeremy Corbyn). Jeremy Corbyn did nothing to intervene. The chief Rabbi of the UK and a former chief Rabbi have declared that the UK Labor party is no longer a safe space for Jews. Historically Jews have been plentiful and well represented in the Labor party.
Next the Jo Cox was tragically murdered by a mentally ill individual and not a fascist. He had sought mental health treatment prior to committing this heinous act. He could not be given an appointment in a timely manner. Unfortunately you can never underestimate the potential of the mentally ill to create mayhem.
The last point is that I am far from the only person to be pointing out of late that calling fascists right wing is one of the lefts most blatant attempts at rewriting of history. The most blatant example was Soviet fascism.
It is not only my view, but the view of many, that both Momentum and Unite are essentially fascist and they are a construct of the hard left and now closely tied to the Labor party and very source of Jeremy Corbyn's power and the reason he can not be unseated.
If you look at European fascism, these people who carry out persecution of ethnic groups and religions are basically far to the left on social and economic policy. I would also site the Greek Golden Dawn in this category. Although they are thugs and want to do harm to specific ethnic groups, and all other aspects they are far left, which fits the pattern. It is grossly misleading to label these groups as parties of the right.
I'm not backing down on this one, and nor are a lot of others on this, especially in the UK, where this has been discussed on op ed pieces in recent years, including editorials in major news papers making the same point I am making.