Israel is not my "homeland". I've never been to Israel, let alone lived there. My parents have never been to Israel. You'd have to go back over 2000 years to find an ancestor of mine who lived in Israel. I have no connection whatsoever with the actions of the Israeli government. So if you attribute their actions to me, simply because I am Jewish, that is by definition racist and anti-semitic.
Imagine if the non-black head of diversity at a major US corporation wrote a post titled "If I were Black", directly tying the actions of modern-day African governments to all African Americans. Or a post titled "If I were Catholic" doing the same thing to all US Catholics based on actions of the Vatican or even just the Pope. This sort of thing happened in the US decades ago and was acceptable then, but is not even remotely acceptable now, nor was it acceptable when this post was written.