I'm probably not going to be popular but oh well...
People who dislike/act terrified of dogs.
People (women in particular) who act scared of bugs/worms/spiders/rats/mice/snakes and make a big attention seeking fuss.
Clients at work who think their flea and worm treatment is more important than the cat that is currently being resuscitated.
Owners of said resuscitated cat opting for euthanasia after a further 7 dedicated hours of keeping the cat alive.
Wanky speak - guys, in the loop, going forward, reaching out, boundaries, process.
Religion - they're all pure nonsense and people make up rules to appease imaginary gods.
Every badly behaved child having to be autistic - even without a diagnosis. No child can ever just be a brat anymore.
Teachers talking about children making "good choices" rather than a proper punishment.
Dog breeders - especially of brachycephalic breeds.
People who take selfies from above to show off a cleavage, also duck lip selfies.
People who put up with domestic violence when we all have agency to change our situation.
Fly tipping.
Men trying to mansplain things.
I'm sure there are more...