I'm a long time reader of HN as well (to put it mildly). I think we just naturally pay more attention that things that are relevant to us so it seems like Israel is discussed more.
That said, I tried to prove you wrong by searching for stories featuring the word "Ukraine" and "Israel". There's only one story featuring Israel. But then I realized I was making a mistake and searched for "Gaza" as well, and found far more stories.
So, it's kind of hard to say from this quick check, but maybe you're right. That said, I think you're right that HN just reflects the fact that Israel/Palestine is just a far more interesting topic to many people, and especially to people of the US.
That said, I tried to prove you wrong by searching for stories featuring the word "Ukraine" and "Israel". There's only one story featuring Israel. But then I realized I was making a mistake and searched for "Gaza" as well, and found far more stories.
So, it's kind of hard to say from this quick check, but maybe you're right. That said, I think you're right that HN just reflects the fact that Israel/Palestine is just a far more interesting topic to many people, and especially to people of the US.