Here is everyone's nearly daily reminder that there is a difference between antisemitism and antizionism.
Criticizing the Israeli government and its leaders is not the same as criticising all Jewish people.
The Zionists want to conflate these things so they can hide in plain sight and have people that aren't paying attention defend their war crimes.
That's the original simpler definition, but as with many words and phrases, time has changed the meaning in real world usage. Modern usage of the term should probably be referred to more as Revisionist Zionism, but everything gets simplified for modern short attention spans.
This is characterized by territorial maximalism and the idea that Israel should conquer more territory, at any cost. This is clearly the modem day Israeli government perspective. Settlements and the denial of Palestinian rights are a core part of Revisionist Zionism because of that. It is not compatible with a two-state solution, much less a one-state equal rights solution. Which is why it needs to be separated from general antisemitism.
I also have to say though that they've had nearly 80 years to figure this out with Israel being the de facto leadership because of British decisions post-war, maybe it's time that the Palestinians had a chance instead. It was those British decisions after all that took the land promised to the Palestinians for their assistance, to create Israel in the first place.