Most European governments look at the simultaneous invasion of Israel by three Arab states in 1948, and statements made about the aims of that invasion, and think "what would we be prepared to do to defend against such determined, implacable hostility?". They look at what Israel does to defend itself and think, yeah, pretty much we'd do that.

They look at Israel and see a democratic, technologically advanced state with a liberal economy much like their own. They look at the repressive, autocratic extraction economies in the Arab world and recoil in horror.

I'm not making any judgement on this, or whether they're right or wrong, but that's just how many Europeans see the situation.