They hated (still do) the Jews but recognized the Jewish contribution to that Continent by turning them to ash in WWII.
After WWII there was a collective sense of war guilt and they agreed (grudgingly) to help establish the State of Israel.
By 1976 the UN was firmly in the PLO/Nonaligned/Anti-Western camp and under the then Secretary General Nazi, Kurt Waldheim, the stage was set for anti-Israel bills, decisions, resolutions and condemnations.
Then, in 1982 Israel was blamed for the Sabra and Shatilla massacre carried out by the Lebanese “Phalange” militia. That was it, That was the deciding event that put Europe and Israel on a collision course.
Now, all the pent up antisemitism flowed out openly and when combined by the huge influx of Palestinians Arab Muslims into Europe. A new mixture of hate was now called Anti-Zionism , not antisemitism mind you.
Today, it has gotten worse. The more Europe SUBMITS, CAPITULATES and is raped by the Muslim so-called “Refugees”, the more Europe appeases the Arabs by pressuring tiny, Democratic Israel to CAPITULATE and take the Arabic heat off the Europeans. It won't work.
Israel will stand steadfast while Europe dies. The US in the meantime will hopefully elect a pro-American US President who will strengthen our ties with that tiny, beleaguered nation, Israel.
The Euros murdered millions of law-abiding, highly productive citizens and decades later welcomed (and continue to welcome) millions of angry, violent, unproductive, welfare-collecting cult fanatics who with open arms. One doesn't need to be Freud to recognize the obvious Euro death wish. Just about everything they've done for over 100 years has been suicidal. They'll get their wish soon enough -- crescent moons on every one of their flags.