There's nothing inherently 'anti-Israel' in the UKIP document you provided.
16.4 UKIP fully supports the right of Israel to exist as a Jewish state and recognises the despicable anti-Semitism in European history, culminating in the Holocaust. Israel is surrounded by hostile states committed to its destruction. The tiny state has been the frequent victim of rocket attacks and suicide bombings from terrorist groups, almost all deliberately targeting civilians. Israel has every right to respond with proportionate force to these attacks, and a UKIP government would do the same were Britain similarly threatened. UKIP rejects the notion that Israel should be punished through sanctions or cancellation of trade deals (such as the EU-Israel Association Agreement) for defending itself from attack.