because we are actually familiar with ethnonationalism and terrorism, due to eta. tldr: spain tried pretty much everything to get rid of eta, including resorting to state terrorism. we had agents going around being able to execute people with no trial or needed justification. none of that worked. it actually made it worse. as such, violent escalation from israel is seen as counterproductive to the problem and progress towards the expansion of israel, as proven by the support given to the settlers.
Spain