@Misterioso, it doesn’t do your cause any good by digging up (cherry-picking) quotes that are superseded by later thinking by the same people.
The remarks you have quoted from Morgenthau Sr. are one of the earliest formulations by a Jew to assert that a Jewish state is a bad thing. Morgenthau was more involved in Judaism than most “as-Jews” but his hubris at pretending to know what is best for all Jews is starkly contrasted with the millions of Jews who were slaughtered only twenty years later, partially because Jews like him gave Great Britain the confidence that Jews wouldn’t cause a stink when it capitulated to Arab demands not to allow Jews to immigrate to Palestine to save themselves from the Holocaust.
Morgenthau Sr. described why it is literally impossible for Israel to ever prosper economically (in the full British Mandate area), and why Zionism is impossible politically. Morgenthau eventually gave his real reason to oppose Zionism – his certainty that the modern world is a tolerant, accepting place for Jews who can integrate peacefully – WRONG.
While he decried Zionism as being utopian and unrealistic, his ideas that Jews would integrate to end antisemitism were even more utopian and unrealistic, as history has shown.
We don’t know whether Morgenthau changed his mind after witnessing the Holocaust and the success of the Zionist enterprise, as he died in 1946.
His son Morgenthau Jnr. was Treasury Secretary for FDR and ended up becoming a strong supporter of Zionism.
As for Freud, Edward Said noted that Freud was an early anti-Zionist but later modified his view when Nazi persecutions of European Jews made a Jewish state seem like a possible solution to widespread and lethal anti-Semitism. That Freud held a position vis-a-vis Zionism that was ambivalent doesn’t prove anything.