If anytime you travelled abroad you were treated like a hard-core Iraq ware supporter and Halliburton board member you'd get sick of it too. Or if every time your country vaguely became a topic for discussion things immediately devolved to view you and your nationality as not much except native american murderers and subjugators and ask you to answer for everyone else's actions in the history of your country. And when you have a well articulated answer explaining that it's more complicated than an archetypical narrative, or anything slightly well-written, they dismiss you as a highly-trained PR spokesperson lurking on forums instead of a human being with an opinion.
Yeah, it gets tiring.
As a result, you don't really want to get into details because it doesn't really sound like anyone's too open to hearing what you have to say, just looking for a fight. And then people pre-empt you by saying "stop calling me an anti-semite" and "I'm sick of you people saying ___ " while at the same time completely ignoring other important human rights abuses going on in the world, you begin to wonder why you bother engaging anyone, and instead just resort to asking to talk about it elsewhere, not when you're trying to read Hacker News.
And yes, snarky one-liners that gloss over the entire region's history evoke all of this.