The poster blaming everything "100%" on Israel tells me that they are not a person of nuance, and people who engage in rigid, black-and-white thinking often have overly simplistic views about how the world works (e.g. Jews control the world).
Correlation does not mean causation, but it hints at it.
That's... a very convoluted way of looking at the world. If he stated any other rigid thought, as, "we must exterminate all mosquitos, they are 100% not needed", would you then conclude he's antisemitic too?
Israel means the state of Israel in this case, very clearly. Don't draw the antisemitism card for everything. You must have heard of the boy who cried wolf, surely?
The majority of criticism of Israel I've seen have nothing to do with Jews or Judaism, but the war crimes by a right-wing militaristic state that engages in constant violent aggression.
Outside of extremist Muslim rhetoric, I've seen almost no anti-Jew criticism of Israel, but I've seen many statements like yours that equate criticism of Israel with antisemitism.
Plenty of mid-right-wing voters like myself just don't like that US politicians are displaying foreign loyalty, regardless of what country it is. It started with Kissinger. I'm not even going to call Israel's wars unjustified, just very clearly shouldn't be our problem.
