By the 'whole of Europe' you're misrepresenting things quite a lot - out of the current members of the EU, only 8 votes went to approve the partition resolution. Remember that countries like Ireland, Italy, Germany, Austria, Spain, Portugal, Finland etc. didn't have independent governments or weren't in the UN at the time.

The US did a lot of arm-twisting to get the motion through as the earlier vote of the General Assembly acting as an ad-hoc committee on the partition plan failed to reach the 2/3rds required by one vote. Greece has told that it would loose US aid (but stuck with its choice), other places like Liberia were threatened with rubber embargoes whilst Paraguay, the Philippines, Haiti and others reversed their positions.

The US was vital to getting the resolution through, and in being one of the first to recognise Israeli after the Declaration of Independence. If the US had opposed the creation of the state, it just wouldn't have happened.

It's also worth remembering that the partition plan was for the creation of an Arab state in nearly half of the areas that now make up Israel.

Amusing anecdote:

Amoz Oz was...once sat with his father and his grandfather, along with other right-wing Israelis, in the front row at an event where a speech was given by Menachem Begin. Like most right-wing politicians of the time, Begin spoke a rather classical Hebrew, reminiscent of the Bible, not of the street. The front three rows were mainly intellectuals, but the people behind them, the great majority of the audience, were working-class immigrants to Israel from Middle Eastern countries, and they spoke the colloquial "street" Hebrew of the Jerusalem area. Now, it turns out that in biblical Hebrew, though not in the Jerusalem vernacular, the same word was used at the time for "weapon" and the male sexual organ. And in the vernacular, though not in Biblical Hebrew, the verb "to arm" (to slip someone your weapon, as it were) had acquired a new meaning: it was used to mean "to ???". Says Elon:

Begin, a great orator, was attacking the readiness of the great powers to arm the Arabs.

In rising, melodic cadences Begin was, for most of those present, complaining that Eisenhower and Anthony Eden were "???ing" Nasser day and night. "But who is ???ing us?" he asked in an outraged voice. "Nobody! Absolutely nobody!" A stunned silence filled the hall. Begin did not notice. He went on to predict that if he were to become prime minister everyone would be ???ing Israel.