If you're just born in Tel Aviv or Gaza City, I don't think you should be blamed for these military things. Maybe you support Hamas or Otzma Yehudit, but you're kind of a product of your environment, and if tangential support is all you do you're still a bystander. Maybe not a great example of humanity, but a bystander none the less.

I would have to be pretty truly desperate to consider aliyah myself, even before there was a war. I guess I could do it, and then support forces in Israel for peace, but I'm not sure if I'd make any difference, and they're going to be reluctant to let in my never-practiced ass even without me being openly hostile to the whole project.