Radosh makes it clear that the Left supported the establishment of Israel. The key support came from I F Stone (Izzie) and the Nation magazine.
My father had been to Palestine the year before and was a fanatic supporter of Israel. Based on his experience he warned me, when I went to Israel a decade later, that I should be aware that Arabs are very charming and Israelis are very rough-cut but that the Israelis were the honest competent ones.
My father read every issue of the I F Stone weekly and the Nation magazine all of his life. I read the weekly for about 10 years of my life.
The question is why the Left in the early postwar years was pro-the establishment of Israel. The answer is sadly simple.
The Left for the first half of the 20th century followed the dictates of Russia and the USSR. Immediately after World War II, Stalin was very anti-Hitler and he knew that the Palestinians, represented by the Arab Mufti had actively supported Hitler. Therefore Stalin supported the creation of Israel.
This changed promptly when Stalin saw the opportunity to use Arabs against American interests in the Cold War.
The Left slowly moved away from Stalin in the early 50s and moved toward Mao's China.
That is where the Left was stuck until Mao died.