I'm sure some people have made this claim about Israel, but the OP is mostly a straw man:
A straw man is a component of an argument and is an informal fallacy based on misrepresentation of an opponent's position.[1] To "attack a straw man" is to create the illusion of having refuted a proposition by replacing it with a superficially similar yet unequivalent proposition (the "straw man"), and refuting it, without ever having actually refuted the original position.[1][2]
Might Israel be an evil nation? No nation can be evil. Individual people can be good or evil, but an entire country can't be evil or good as it represents many people some of whom are mostly good and others who are mostly evil.
For example, pretty much everyone would agree that while Germany was run by the Nazis, evil people committed war crimes, genocide and crimes against humanity. But claiming Germany itself was evil is about as correct as saying all Germans are inherently evil.
Similarly it would be wrong to claim all Israelis are evil or that all Palestinians are terrorists.
Zionist Israel is controlled by evil people who have committed war crimes and crimes against humanity. They aren't committing genocide at the moment, but give them time. We still don't know how low these people will sink. The evil people who ran Nazi Germany didn't commit genocide in the 1930's either, but they were committing crimes against humanity and their goal was to create a pure Aryan state. No one knew for certain in the 1930's that the evil Nazis would eventually commit genocide, but we all know where Nazism eventually led. Thankfully evil Nazis no longer run Germany, but evil Zionists still run Israel and still commit war crimes and crimes against humanity and their goal is to create a pure Jewish state. When evil people announce their intention to create a pure state of one type or another, that should set off alarm bells for most rational people.
The evil Zionists who run Israel created the current situation where millions of people have no nationality, no rights and suffer religious based oppression and injustice. Their goal is to cleanse Palestine of non-Jews and create a pure Jewish state. Maybe these people might devolve into rounding up non-Jews and exterminating them in death camps or maybe they'll just keep squeezing them into ever smaller prisons with less and less food.
I would agree that Israel's leaders don't currently commit genocide. Instead they practice a form of creeping ethnic cleansing as they expand Jewish only neighborhoods in Jerusalem and the West Bank. In order to do this, Palestinians have been removed from their homes and their homes have been demolished. Evil Zionists have committed a variety of crimes from harassment, rape and torture to murder. These evil people have chased millions people off their land. These evil people call their injustice "redeeming the land".
http://www.thirdworldtraveler.com/Herman%20/Israel_Ethnic_Cleansing.html
The resulting refugee camps of non-Jews are among the world's most densely populated and poorest areas. Non-Jews who live in the areas controlled by the Zionist state of Israel suffer varying degrees of oppression and injustice. Some have Israeli citizenship and only suffer discrimination and harassment. Others have no rights or freedoms and live behind walls, razor wire and guard towers. These people have no citizenship, no nationality, and their movement is restricted or blocked. Farmers have been cut off access to their farmland, which is then seized by the state for being "abandoned" like it was voluntary. Because what enters and leaves these prisons is strictly controlled by theevil Zionists intent on collectively punishing millions of people, many people lost their means to make a living and can't afford to buy food or pay rent. Entire families have become destitute and completely dependent on international food aid, which is controlled by the Zionist State of Israel.
Meanwhile Israel's Jewish only colonies have proliferated across the West Bank, in violation of international law.
I would agree that the evil war criminals who currently control Israel don't currently practice genocide, but I would also say that these people and their proxies have committed acts of genocide in the past.
During the 1947 ethnic cleansing war, some Zionists committed acts of genocide. That's the only way I could describe surrounding a village so no one could escape and then deliberately killing every man, woman and child.
Later in Lebanon, Israeli forces surrounded the Sabra and Shatila refugee camps and allowed their mercenaries to enter to commit rape, torture and genocide. The zionist State of Israel armed and paid these mercenaries. They allowed these mercenaries to pass through Israeli military checkpoints to enter the Palestinian refugee camps. The Israeli military blocked the escape of Palestinian victims. Israeli forces lit up the night sky with flares and observed the slaughter, which took days to complete. Israelis did intervene when their mercenaries were about to torture, rape and execute a group of foreign doctors and nurses, indicating they knew precisely what was happening in the camps at the time.
The evil Zionists who control Israel don't have to commit genocide for good people to oppose their war crimes and ongoing crimes against humanity. If people are seriously interested in knowing the reality, I suggest they read a book called "The Ethnic Cleansing of Palestine" by Israeli historian Ilan Pappe. Here is a synopsis of the book's content and main points:
The Ethnic Cleansing of Palestine by Ilan Pappe
If you want to evaluate the supporting evidence for yourself, buy the book.