The answer is different for each side of your slash.
I see two kinds of relationships EA can have to megadonors:
uneasy, arms’ length, untrusting, but still taking their money
friendly, valorizing, celebratory, going to the same parties, conditional on the donor ceding control of a significant fraction of their wealth to a donor-advised fund (rather than just pledging to give)
Are you arguing that EA shouldn’t associate with / accept money from mega-donors unless they give EA the entirety of their wealth?
The answer is different for each side of your slash.
I see two kinds of relationships EA can have to megadonors:
uneasy, arms’ length, untrusting, but still taking their money
friendly, valorizing, celebratory, going to the same parties, conditional on the donor ceding control of a significant fraction of their wealth to a donor-advised fund (rather than just pledging to give)