It's not that far off from things he has been quoted with some credibility as having said:

However, Festorazzi shows that there was someone whom Bordiga was willing to discuss politics with, quite openly and on multiple occasions: Angelo Alliotta, an informant of the fascist political police, whose reports are still available from the Central Archives of the State in Rome. Some of Bordiga's most interesting statements as reported by Alliotta and quoted by Festorazzi:

Therefore, June 10 (the date of Mussolini's declaration of war) was for me what you call a great day. But now that Hitler has grown soft, I begin to lose the trust I had placed in the Axis to strangle and pull down the so-called British colossus, that is, the greatest exponent of capitalism. They are afraid of bringing down England, they are afraid because they know that with it, the whole capitalist system will collapse. [...] I still hope that Hitler will not renounce the struggle, and will go all the way, to the extreme consequences.

The great and authentic revolutionaries of the world are two: Mussolini and Hitler. But Mussolini's past shows that Il Duce has always been against the plutocracy and against the democracies, which paralyze the life of nations.

https://libcom.org/forums/history/bordiga-leninist-who-put-his-hopes-axis-27122017

Edit:

Of course then in the comments we get:

There were plenty of pro-revolutionaries in that time, certain anarchists, who set much better examples in their lives. The fondness for Hitler and Mussolini is disgusting. Marxism for ya..

every fucking time

That said, other discussion in the comments is really interesting (and too lengthy to be fruitfully quoted) along with mention of the smol been Makhnovists who just keep having these oopsie-woopsie splinters that do ethnic cleansing (just kidding, the pogroms aren't mentioned, just the suppression by the Bolsheviks of the Makhnovists)

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