“which of the other “wide variety of forms” of colonialism were not motivated by some combination of either power, greed, or the white man’s burden? Or are you claiming that one or all of those were also the driving force behind Zionism?”
Power, greed and a form of ‘the white man’s burden’ were all factors behind Zionism. To what degree they were part of ‘the’ driving force for Zionism is open to debate, but how creating a safe haven could be accomplished without seeking power is difficult to understand. It is power that provided protection.
How can you suggest that escape from persecution as a colonial motive is unique when you must be aware of American history? Colonial migration largely revolved around groups seeking a safe haven from religion persecution. That there were many different groups seeking protection eventually helped establish the principle freedom of religion. This principle likely motivated the tiny amount of colonial Jews into support for the Revolution.