Israel the state does not represent Judaism nor ethnic Jews

I am aware and agree.

Saying someone wishes Israel as a state to no longer exist is not anti-semetic

I agree.

What I believed was that the use of "dog" was an anti-semitic dogwhistle with historical use as a call to oppression and genocide of Jews.

Calling for the dismantling of Israel but using an anti-semitic dogwhistle with a history of calling for genocide blurs the line between legitimate criticism of Zionism and calling for anti-semitic genocide.

As it turns out, I had falsely believed that calling Jews “dogs” was a long anti-Semitic tradition. I did more research and discovered that actually historically they were called rats and lice and very few examples exist of anti-semitics tropes comparing Jews and dogs.

The most salient example of that was an American trend to hang a sign on your shop that said “No Jews or dogs allowed”, but that doesn’t meet the standard of what I had believed.

Had the commenter said “Israel is a plague of rats that needs to be exterminated”, I believe I would have been justified in calling it out as using a dogwhistle. As it stands, however, I was wrong.