According to the Peach tag's wiki, the tag is to be used only for the fruit. Any characters or other things using the word should not be tagged such. However, we also have a different tag for peach_(fruit). Should we just alias peach away to peach_(disambiguation) and do away with the entire issue of fruit vs. not fruit?

yeah disambiguate it

Definitely.

Approved alias -> peach_(disambiguation) and copied over most of the wiki.