and returning it to sit in the fund unused doesn't seem like the best way to do that to me.
I would agree with you if that were true. But they're not "unused" they are doubling their value every day! (with HBD at $2)
In case you have not checked, the return proposal is receiving 0 because @hbdstabilizer is selling all HBD for hive.
However, I think each person with a proposal should decide what to do with the funds and every voter has the right to keep or remove his vote. There is no right or wrong here, just preferences.