anti-shipper

noun2

1. •
   (slang) One who opposes a specific ship or shipping in general.

   • MSR ahead! anti-shippers, this ain't your cuppa tea! Plenty of UST! — 1997
2. •
   (slang) One who objects to ships or shipping deemed offensive, e.g. due to incest, age differences, abusive elements, or power gaps.