I agree with most of it.
If I have you right then I agree that the far-right wing of capitalism enlisted the assistance of fascists and it's foot soldiers to intimidate the left in the seventies? This, to enable the implementation of a radical right-wing government, that dealt ruthlessly with the organisations of the working class. With a radical right-wing government in power, now no need for the fascists and their foot soldiers. Am I on the right page here?
I accept too that the level of support for the ideas the NF promoted were still there, even after their dismal performance in the elections of 79
I also accept that their vote had increased, however, they didn't win a seat, so pretty dismal for them in electoral terms. No?
I also note your criticism of the left here when you claim what they saw as a 'great victory' with Beakons defeat in the 90's, but his vote increasing. But are you right? Did the left say say it was a 'great victory'? I have my doubts.
I would add to that it's not very sensible to claim success when people see the opposite happening. Similarly, to claim that the fascists are doing well, when the opposite is happening.
Nonetheless, anyone elected who has no qualms about raising a stiff arm salute, as Beakon did caught on camera, is not good news for the left.
Lastly, your comment about anti-fascism not dealing with the root causes of fascism in the working class I would agree to some degree. Anti-fascism is usually an indication of a political weakness amongst the left, rather than any indication of strength.