"Openly advocating a genocide" definitely seems like the wrong side, no matter what many people believe is up for debate.
If they openly said "kill every Palestinian" then that is a problem.
On the other hand, in the current moment, it is very popular to interpret a wide variety of pro-Israel statements as "advocating genocide".
It's really common, and it's an advocacy for an international crime/or war crimes, not an "political opinion" as many here suggest. Just like advocacy for any other crime would probably not be brushed aside as a "political opinion". "All black women in my city should be raped, because [some felt injustice]."
When advocated for from people in real power, or with a lot of money and influence, or from bosses in companies, it's quite chilling.
People are really not afraid.