Here this part got cut off at the end. It has what he actually said. (Auto translated, so, 🤷♂️)
In May 2022, the leader wrote: "Zionists = Nazis" and "74 years of the catastrophe that the Palestinian people are experiencing, at the hands of the racist and genocidal state of Israel. The key, symbol of their houses and stolen lands, is present in every fight. For a secular and democratic Palestine, from the river to the sea."
The second part is quite literally historical fact (the word "genocide" might not be legally correct yet (as in a court hasn't ruled). But colloquially we all know, even the deniers know, it's true). The first part is technically subjective, but anyone educated (actually educated) on the Nazis, their rhetoric, etc. understands it to be true. Maybe some people, for personal reasons, find saying it objectionable. That should have zero bearing on if something is permissible to say or not especially with penalty of jail time. "Free speech, libertarian" bad haircut/sideburns guy strikes again.
I do find it "odd" that if he had called the United States' genocide of indigenous people an inspiration for what the Nazis were trying to do, no one would care. Maybe a few incredibly annoying right wingers would whine. But when you continue the comparisons onward to Israel it's suddenly, "Woah woah woah! But Bible book says! How dare you!" Protecting the apartheid state is the only important thing here. It has absolutely nothing to do with history or truth. Just make people shut up so the apartheid state remains, ethnic cleansing continues, and Israel expands further. They need "living space" after all.