It was a debatable point. It never gained the two thirds majority required, and it was not enforceable.
The Arab League declared a strong objection and stated that they would resist the resolution by force.
Palestine was not able to voter, and it was their land.
The right of self-determination, a major principle of the UN, was violated.
The Jews stated that they would deal with any 'resistance' in their own way.
A civil war erupted as foresaw by many member states.
Despite the population being 650,000 Jews and 120,000 Palestinians.
Israel went on to seize more territory, despite it being directly against any conditions contained in the Resolution 181. So Israel violated the UN Resolution.
Israel seized the city, against the conditions contained in the Resolution 181. So Israel violated the UN Resolution.
Note the 'sharing'. Israel has denied Palestinians much of their economic freedom, against the conditions contained in the Resolution 181. So Israel violated the UN Resolution.
The British evacuated in May 1948, and Israel declared an independent Israel on May 15, 1948, on the evening before the final evacuation, several months too early.
It violated the fundamental right of self-determination. the Palestinians never accepted the control of their homeland by the UN, who did not own, nor control that territory.
Because the UN Resolution violated the fundamental principle of self-determination.