When Khamenei talks about "Zionist capitalists" who were a "plague for the whole world" before Israel was established, it is quite obvious he's referring to the classic conspiracy theory about Jews, not "Zionists." In fact, he is using the exact same timeline as the forgers of the Protocols of the Elders of Zion.
He goes on to attempt to use his Jew-hatred as a means to disrupt the Abraham Accords as he continues to use the term "Zionist" as an obvious euphemism for "Jew:" "The plague of Zionism should be exposed, in any way you can. These Arab and non-Arab states that shook hands, kissed & held meetings with the Zionists won’t benefit from what they did at all, not at all. This will only be to their loss. "
In another allusion to the Protocols, Khamenei concludes by saying that the "Zionists" are secretly exploiting the Arabs much like the Jews are said to be secretly manipulating gentiles: "Muslim nations oppose the normalization of relations with the Zionists, clench their fists & shout slogans against states seeking normalization. The Zionist regime exploits these states. They don’t realize it, but we hope they realize it before it’s too late."
The Jew-hatred is as blatant as it can be. But Iran's Supreme Leader avoids using the word "Jew" so apologists for modern antisemitism can continue to pretend that Iran isn't systemically antisemitic.
