Here are just a few or the many, many examples from his writings of why I consider Crowley far-right:
1. Crowley & Fascism:
"The Fascisti swarmed all over the city. I thought their behaviour admirable. "
"For sometime I had interested myself in Fascismo which I regarded with entire sympathy even excluding its illegitimacy on the ground that constitutional authority had become to all intents and purposes a dead letter. I was delighted with the common sense of its programme and was especially pleased by its attitude towards the Church... I was also convinced of the importance of the movement and of its almost immediate success. I did my utmost to persuade Austin Harrison of the soundness of my judgment. "
Crowley agreed with Fascist politics, and admired their behavior - before being expelled from Germany, he expressed a desire to meet with Hitler & convert him to Thelema based on these views, before Mussolini did a deal with the Catholic church, he likewise expressed admiration for him.
2. Crowley & anti-semitism:
"...Christians and other troglodytes - but most especially the parasites of man, the Jews"
"...but to the general position of the ethnologist that the Jews were an entirely barbarous race, incapable of any spiritual pursuit."
"Human sacrifices are to-day still practised by the Jews of Eastern Europe... and evidenced by the ever-recurring Pogroms against which so senseless and outcry is made by those who live among those degenerate Jews who are at least not cannibals."
"Israel has corrupted the world, whether by conquest, by conversion, or by conspiracy. The Jew has eaten his way into everything. The caricature of Semitic thought, Christianity, rotted Roman virtue through introducing the moral subterfuge of vicarious atonement."
3. Crowley & white supremacy:
"The appeal of the inferior races is, perhaps, a taint of atavism in our blood. Those weary spirits among us who despair of life, who fear to fall from the long ladder of evolution; are always ready to listen to the siren calls of the bestial."
"The campaigning against the supremacy of the higher races is therefore carried on, at the present time, by subtly undermining the spiritual bastions of Europe and America."
"There is one salient fact of to-day to which Europe and America can not shut their eyes. It is the surreptitious agitation of the inferior races, those whom evolution left behind – the negro and negroid types period. This menace grows with every year."
"The grotesque the atricalities of the renegade Annie Besant, the Barnum of the buck Messiah Krishnamurti, must serve to sharpen the will of the white race; not only to defend itself; but to sally forth once more as in the spacious days of Good Queen Bess, and reconquer our foregone prestige and mastery."
"We conquered the peninsula by sheer moral superiority. Our unity, our self-respect, our courage, honesty and sense of justice awakened the wonder, commanded the admiration and enforced the obedience of those who either lacked those qualities altogether, possessed some of them and felt the lack of the others, or had, actually or traditionally, sufficient of them to make them the criteria of right and ability to govern. As elsewhere observed, our modern acquiescence in the rationally irrefutable argument that the colour of a man’s skin does not prevent him from being competent in any given respect, has knocked the foundations from underneath the structure of our authority."
There are plenty of other examples if you care to look - Crowley was both a racist & a white supremacist - and that fact has been acknowledged by Frater Sabazius (Bill Breeze), current head of the OTO - he was openly against 'race mixing', and had something racist to say about every ethnicity he encountered, he was anti-semitic, and he pro-fascist.
Now, you can be an apologist & use arguments grounded in weak-minded moral-relativism about him 'being a product of his age' or his behavior being 'part of his culture', but the majority of the world opposed fascism, and during WWII American troops were shown training videos about how socially unacceptable racism was in Europe - so no, his views were not an acceptable part of his culture; and no, they did not represent the times in which he lived.
Crowley was an authoritarian, anti-semitic, racist, white-supremacist fascist (or fascist-sympathiser) - so yes, I do indeed consider that far-right.