In the mid-1970's we were on shlichut, doing Jewish youth work in London, and our older daughters attended a Jewish school on a main street in NW London. There were many other children of Israelis studying in that school. There were Israeli security guards stationed in the school.
We, the parents, had to wait for our children outside, not near the main entrance. The school property was walled in by a thin wall about six feet, less than two meters high. We waited by a door in that security wall. Sometimes there were quite a lot of parents. I came with the younger children who weren't in school.
At least once, some car slowed down near us and shouted unpleasantly. We were lucky. That's as far as it went. But it was pretty dangerous to make us wait outside like that, like sitting ducks.
Jews are in danger all over. I'm not saying that there aren't any dangers here in Israel, but if you're staying away from Israel because you think you're being "safe" and "smart," you're wrong.