Israel killing civilians in Gaza and the West Bank Why is Israel such a lightening rod for criticism? — Count Timothy von Icarus
There are a few reasons situations like this happen.
1. Like I said, awareness. People are generally more aware of some conflicts than others, and more knowledgeable about them.
2. Western support. It may be perceived that Israel is doing all their nastiness with support and resources from Western countries, in ways that the other countries are not. The average American may think (whether right or wrong), my country is more involved in this conflict, which means my voice matters more than it would in some conflict my country is a lot less involved in
3. Responsiveness to reason. Israel may actually be seen as a country that is more fundamentally reasonable than other countries. In other words, if you said "hey, what you're doing is evil and you have to stop" to the Israeli government and also to the Saudi government, which one do you think is more likely to listen? Some countries, there's no point criticizing them much, because they're evil, they know they're evil, everyone knows they're evil. Other countries, especially more Western-seeming countries, provide space for the idea that if you criticise them hard enough, there may be enough sway within their society to stop the evil.
The last reason is why I criticise leftists more than conservatives. Conservatives are pretty much hopeless, criticism wouldn't do much good. People on the left can do better