I almost never meet a Jew and think to myself, "that person's a Jew". I would have no way of knowing he/she were Jewish until they told me. Which is why most of these attacks are against synagogues and Jews in traditional garb. Because the attackers wouldn't know their victims were Jews, otherwise. So the idea that Jews "stand out" in some way is not that reasonable. So is there something about Judaism, itself, that invites this ire? I don't see it, either.
In the past, in Europe, I think Jews were 'stand-offish' relative to the communities in which they lived, and this invited the ire of the people around them. They were viewed as being elitists, and that did make them targets. But I'm not seeing that these days. Most Jews blend into their surrounding society so well that they are nearly indistinguishable. So there would be no reason for that old elitist ire to manifest.
So, if it's not a personality clash, and it's not a religious/ideological clash, what it is?