Funny that you should mention that mandate. A "mandate territory" is simply a transfer of colonial rule from a loser of World War I to a victor of the war. In no way should the term "mandate" here be construed as an agreement that was supported by broad consensus.
A little context: The League of Nations was established by the Treaty of Versailles at the end of WW I. That treaty was fully drafted by Britain, France, the United States, and Italy; the first members of the League included all allied victors of the war, their (former) colonies, and the colonies of the losers of the war, which became the mandates you refer to. Many countries that were neutral in the WW I were extended an invite to join the League, but they were not present during negotiations in Versailles.
So, contrary to what you suggest, the League of Nations never voted on the establishment of these "mandates", as they were simply the result of the World War I victors divvying up the spoils of war -- and for Palestine specifically, the so-called "Principal Allied Powers" explicitly reserved those powers for themselves without any input from the rest of the League [0]:
> The San Remo Resolution passed on 25 April 1920 determined the allocation of Class "A" League of Nations mandates for the administration of three then-undefined Ottoman territories in the Middle East: "Palestine", "Syria" and "Mesopotamia". The boundaries of the three territories were "to be determined [at a later date] by the Principal Allied Powers"
So no, "most of the planet" did not weigh in on the establishment of the Palestinian territory; that burden of responsibility squarely falls back on Britain, France, Italy, Japan, and the US.
Also, your claim that Israel was created by the League Of Nations is an anachronism. The League of Nations was disbanded on 18 April 1946 (subsumed into the United Nations), and Israel did not become a nation state until 14 May 1948. Before that date, the territory was known as the Mandate of Palestine.
A little context: The League of Nations was established by the Treaty of Versailles at the end of WW I. That treaty was fully drafted by Britain, France, the United States, and Italy; the first members of the League included all allied victors of the war, their (former) colonies, and the colonies of the losers of the war, which became the mandates you refer to. Many countries that were neutral in the WW I were extended an invite to join the League, but they were not present during negotiations in Versailles.
So, contrary to what you suggest, the League of Nations never voted on the establishment of these "mandates", as they were simply the result of the World War I victors divvying up the spoils of war -- and for Palestine specifically, the so-called "Principal Allied Powers" explicitly reserved those powers for themselves without any input from the rest of the League [0]:
> The San Remo Resolution passed on 25 April 1920 determined the allocation of Class "A" League of Nations mandates for the administration of three then-undefined Ottoman territories in the Middle East: "Palestine", "Syria" and "Mesopotamia". The boundaries of the three territories were "to be determined [at a later date] by the Principal Allied Powers"
So no, "most of the planet" did not weigh in on the establishment of the Palestinian territory; that burden of responsibility squarely falls back on Britain, France, Italy, Japan, and the US.
Also, your claim that Israel was created by the League Of Nations is an anachronism. The League of Nations was disbanded on 18 April 1946 (subsumed into the United Nations), and Israel did not become a nation state until 14 May 1948. Before that date, the territory was known as the Mandate of Palestine.
[0] https://en.wikipedia.org/wiki/San_Remo_conference