Here the history why Jewish refugees landed in Palestine.

The United States was the primary destination where Jewish refugees from Germany should have gone, as the U.S. possessed the legal capacity to admit them under existing immigration quotas but failed to do so due to restrictive policies and public opposition. 

From 1933 to 1941 Nazi Germany pursued an aggressive policy of forced emigration for the 3rd Reich’s Jews.

More than 340,000 Jews emigrated from Germany and Austria. Of these, about 100,000 who fled to other European countries subsequently were killed in the Holocaust.

Refugees faced enormous obstacles in finding safe havens during the Great Depression and World War II.

Between March 1938 and September 1939, approximately 85,000 Jewish refugees reached the United States, a number far below the over 300,000 applicants waiting for the 27,000 available visas in late 1938. 

Also Cuba could have been a Jewish destination but the already agreed visa were annuled.

The Wagner-Rogers Bill of 1939, which proposed admitting 20,000 Jewish refugee children outside of the standard annual quota, but the legislation was rejected by Congress despite support from First Lady Eleanor Roosevelt. The failure to accept refugees was most starkly illustrated by the MS St.  Louis incident in 1939, where the U.S. government refused entry to 907 Jewish passengers who had been denied entry to Cuba, forcing the ship to return to Europe where 254 of the passengers later died in the Holocaust. 

While other nations also restricted entry to Jewish on the run for Adolf, the U.S. had the largest potential intake under the existing quota system.

The refusal to utilize these available slots, combined with the rejection of special programs for children, meant that the vast majority of those seeking refuge were turned away from the one country that could have legally and practically saved them.

So in the end Israel was founded among a circle of hostile Arab countries on Palestine soil. Having said this, the Rockefeller family had buying up land since 1888 in Palestina ordered by the US government.