Assuming the fundraiser, object-level charity, and those in privity with them had always acted in an ethically responsible manner with respect to the donor, I think the confirmed-full-understanding premise could resolve the ethical problem.
(I’m hedging a bit because I find the question to be fairly abstract in the absence of a better-developed scenario. Also, I added the “always acted” caveat to clarify that an actor at least generally cannot behave in a manipulative fashion and then remove the resultant ethical taint through the cleansing fire of confirmed-full-understanding. I’m thinking of scenarios like sexual harassment of employees and students, or brainwashing your kids.)
Assuming the fundraiser, object-level charity, and those in privity with them had always acted in an ethically responsible manner with respect to the donor, I think the confirmed-full-understanding premise could resolve the ethical problem.
(I’m hedging a bit because I find the question to be fairly abstract in the absence of a better-developed scenario. Also, I added the “always acted” caveat to clarify that an actor at least generally cannot behave in a manipulative fashion and then remove the resultant ethical taint through the cleansing fire of confirmed-full-understanding. I’m thinking of scenarios like sexual harassment of employees and students, or brainwashing your kids.)