I have always been polite to orcs who don't immediately attack me. They even like me at orc strongholds. So how come orc hunters attack me immediately? Heck, they're so nasty that I've had Foresworn help me kill them. I mean I get along with every other kind of hunter--they usually just try to sell me pelts and hides, but orc hunters, noooo they have to attack me on sight.

Anyone know what their issue with the Dragonborn is?

Might not be anything specific, i am level 81 and friends with most including Orcs but i am still subject to random attacks by all races

Random encounter.

My orc gets attacked by them even

I've come across them near forsworn camps in the Reach nead Dushnikh Yal and Bards Leap.

They are just very much territorial.